Home / 315,316.20-472,196.70-209,562.60

Finding the Fourth Proportional to 315,316.20, 472,196.70 and 209,562.60

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Solution

The fourth proportional to 315,316.20, 472,196.70 and 209,562.60 is: 313,827.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,316.20 : 472,196.70 = 209,562.60 : x
  2. Step 2: Convert to fraction form
    315,316.20/472,196.70 = 209,562.60/x
  3. Step 3: Cross multiply
    315,316.20x = 472,196.70 × 209,562.60
  4. Step 4: Simplify right side
    315,316.20x = 98,954,768,163.42
  5. Step 5: Solve for x
    x = 98,954,768,163.42/315,316.20
  6. Step 6: Final answer
    x = 313,827.10

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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.