Home / 648,117.20-972,175.80-227,435.60

Finding the Fourth Proportional to 648,117.20, 972,175.80 and 227,435.60

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Solution

The fourth proportional to 648,117.20, 972,175.80 and 227,435.60 is: 341,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,117.20 : 972,175.80 = 227,435.60 : x
  2. Step 2: Convert to fraction form
    648,117.20/972,175.80 = 227,435.60/x
  3. Step 3: Cross multiply
    648,117.20x = 972,175.80 × 227,435.60
  4. Step 4: Simplify right side
    648,117.20x = 221,107,386,378.48
  5. Step 5: Solve for x
    x = 221,107,386,378.48/648,117.20
  6. Step 6: Final answer
    x = 341,153.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.