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Finding the Fourth Proportional to 339,772.32, 509,677.92 and 103,122.72

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Solution

The fourth proportional to 339,772.32, 509,677.92 and 103,122.72 is: 154,689.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,772.32 : 509,677.92 = 103,122.72 : x
  2. Step 2: Convert to fraction form
    339,772.32/509,677.92 = 103,122.72/x
  3. Step 3: Cross multiply
    339,772.32x = 509,677.92 × 103,122.72
  4. Step 4: Simplify right side
    339,772.32x = 52,559,373,434.34
  5. Step 5: Solve for x
    x = 52,559,373,434.34/339,772.32
  6. Step 6: Final answer
    x = 154,689.98

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1.5x scale

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.