Home / 315,005.20-472,507.80-202,812.10

Finding the Fourth Proportional to 315,005.20, 472,507.80 and 202,812.10

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Solution

The fourth proportional to 315,005.20, 472,507.80 and 202,812.10 is: 304,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,005.20 : 472,507.80 = 202,812.10 : x
  2. Step 2: Convert to fraction form
    315,005.20/472,507.80 = 202,812.10/x
  3. Step 3: Cross multiply
    315,005.20x = 472,507.80 × 202,812.10
  4. Step 4: Simplify right side
    315,005.20x = 95,830,299,184.38
  5. Step 5: Solve for x
    x = 95,830,299,184.38/315,005.20
  6. Step 6: Final answer
    x = 304,218.15

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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.