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Finding the Fourth Proportional to 283,038.11, 424,561.48 and 72,671.39

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Solution

The fourth proportional to 283,038.11, 424,561.48 and 72,671.39 is: 109,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,038.11 : 424,561.48 = 72,671.39 : x
  2. Step 2: Convert to fraction form
    283,038.11/424,561.48 = 72,671.39/x
  3. Step 3: Cross multiply
    283,038.11x = 424,561.48 × 72,671.39
  4. Step 4: Simplify right side
    283,038.11x = 30,853,470,587.57
  5. Step 5: Solve for x
    x = 30,853,470,587.57/283,038.11
  6. Step 6: Final answer
    x = 109,008.19

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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.