Home / 315,947.20-472,999.20-306,731.20

Finding the Fourth Proportional to 315,947.20, 472,999.20 and 306,731.20

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Solution

The fourth proportional to 315,947.20, 472,999.20 and 306,731.20 is: 459,202.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,947.20 : 472,999.20 = 306,731.20 : x
  2. Step 2: Convert to fraction form
    315,947.20/472,999.20 = 306,731.20/x
  3. Step 3: Cross multiply
    315,947.20x = 472,999.20 × 306,731.20
  4. Step 4: Simplify right side
    315,947.20x = 145,083,612,215.04
  5. Step 5: Solve for x
    x = 145,083,612,215.04/315,947.20
  6. Step 6: Final answer
    x = 459,202.08

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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.