Home / 347,375.82-521,312.58-147,836.40

Finding the Fourth Proportional to 347,375.82, 521,312.58 and 147,836.40

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Solution

The fourth proportional to 347,375.82, 521,312.58 and 147,836.40 is: 221,860.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,375.82 : 521,312.58 = 147,836.40 : x
  2. Step 2: Convert to fraction form
    347,375.82/521,312.58 = 147,836.40/x
  3. Step 3: Cross multiply
    347,375.82x = 521,312.58 × 147,836.40
  4. Step 4: Simplify right side
    347,375.82x = 77,068,975,101.91
  5. Step 5: Solve for x
    x = 77,068,975,101.91/347,375.82
  6. Step 6: Final answer
    x = 221,860.51

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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.