Home / 315,009.20-472,513.80-202,816.10

Finding the Fourth Proportional to 315,009.20, 472,513.80 and 202,816.10

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Solution

The fourth proportional to 315,009.20, 472,513.80 and 202,816.10 is: 304,224.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,009.20 : 472,513.80 = 202,816.10 : x
  2. Step 2: Convert to fraction form
    315,009.20/472,513.80 = 202,816.10/x
  3. Step 3: Cross multiply
    315,009.20x = 472,513.80 × 202,816.10
  4. Step 4: Simplify right side
    315,009.20x = 95,833,406,112.18
  5. Step 5: Solve for x
    x = 95,833,406,112.18/315,009.20
  6. Step 6: Final answer
    x = 304,224.15

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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.