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Finding the Fourth Proportional to 316,777.68, 437,148.72 and 173,538.72

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Solution

The fourth proportional to 316,777.68, 437,148.72 and 173,538.72 is: 239,480.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,777.68 : 437,148.72 = 173,538.72 : x
  2. Step 2: Convert to fraction form
    316,777.68/437,148.72 = 173,538.72/x
  3. Step 3: Cross multiply
    316,777.68x = 437,148.72 × 173,538.72
  4. Step 4: Simplify right side
    316,777.68x = 75,862,229,318.44
  5. Step 5: Solve for x
    x = 75,862,229,318.44/316,777.68
  6. Step 6: Final answer
    x = 239,480.98

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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.