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Finding the Fourth Proportional to 648,212.70, 972,319.06 and 174,898.06

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Solution

The fourth proportional to 648,212.70, 972,319.06 and 174,898.06 is: 262,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,212.70 : 972,319.06 = 174,898.06 : x
  2. Step 2: Convert to fraction form
    648,212.70/972,319.06 = 174,898.06/x
  3. Step 3: Cross multiply
    648,212.70x = 972,319.06 × 174,898.06
  4. Step 4: Simplify right side
    648,212.70x = 170,056,720,002.41
  5. Step 5: Solve for x
    x = 170,056,720,002.41/648,212.70
  6. Step 6: Final answer
    x = 262,347.10

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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.