Home / 345,036.70-516,913.53-187,397.74

Finding the Fourth Proportional to 345,036.70, 516,913.53 and 187,397.74

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Solution

The fourth proportional to 345,036.70, 516,913.53 and 187,397.74 is: 280,748.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,036.70 : 516,913.53 = 187,397.74 : x
  2. Step 2: Convert to fraction form
    345,036.70/516,913.53 = 187,397.74/x
  3. Step 3: Cross multiply
    345,036.70x = 516,913.53 × 187,397.74
  4. Step 4: Simplify right side
    345,036.70x = 96,868,427,297.42
  5. Step 5: Solve for x
    x = 96,868,427,297.42/345,036.70
  6. Step 6: Final answer
    x = 280,748.19

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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.