Home / 345,087.30-517,528.89-155,437.95

Finding the Fourth Proportional to 345,087.30, 517,528.89 and 155,437.95

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Solution

The fourth proportional to 345,087.30, 517,528.89 and 155,437.95 is: 233,110.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,087.30 : 517,528.89 = 155,437.95 : x
  2. Step 2: Convert to fraction form
    345,087.30/517,528.89 = 155,437.95/x
  3. Step 3: Cross multiply
    345,087.30x = 517,528.89 × 155,437.95
  4. Step 4: Simplify right side
    345,087.30x = 80,443,629,727.38
  5. Step 5: Solve for x
    x = 80,443,629,727.38/345,087.30
  6. Step 6: Final answer
    x = 233,110.95

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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.