Home / 287,997.52-397,433.76-158,937.18

Finding the Fourth Proportional to 287,997.52, 397,433.76 and 158,937.18

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Solution

The fourth proportional to 287,997.52, 397,433.76 and 158,937.18 is: 219,331.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,997.52 : 397,433.76 = 158,937.18 : x
  2. Step 2: Convert to fraction form
    287,997.52/397,433.76 = 158,937.18/x
  3. Step 3: Cross multiply
    287,997.52x = 397,433.76 × 158,937.18
  4. Step 4: Simplify right side
    287,997.52x = 63,167,001,051.20
  5. Step 5: Solve for x
    x = 63,167,001,051.20/287,997.52
  6. Step 6: Final answer
    x = 219,331.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.