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Finding the Fourth Proportional to 303,060.16, 418,139.04 and 173,998

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Solution

The fourth proportional to 303,060.16, 418,139.04 and 173,998 is: 240,069.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,060.16 : 418,139.04 = 173,998 : x
  2. Step 2: Convert to fraction form
    303,060.16/418,139.04 = 173,998/x
  3. Step 3: Cross multiply
    303,060.16x = 418,139.04 × 173,998
  4. Step 4: Simplify right side
    303,060.16x = 72,755,356,681.92
  5. Step 5: Solve for x
    x = 72,755,356,681.92/303,060.16
  6. Step 6: Final answer
    x = 240,069.02

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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.