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Finding the Fourth Proportional to 189,389.88, 284,111.82 and 62,988.48

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Solution

The fourth proportional to 189,389.88, 284,111.82 and 62,988.48 is: 94,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,389.88 : 284,111.82 = 62,988.48 : x
  2. Step 2: Convert to fraction form
    189,389.88/284,111.82 = 62,988.48/x
  3. Step 3: Cross multiply
    189,389.88x = 284,111.82 × 62,988.48
  4. Step 4: Simplify right side
    189,389.88x = 17,895,771,691.83
  5. Step 5: Solve for x
    x = 17,895,771,691.83/189,389.88
  6. Step 6: Final answer
    x = 94,491.70

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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.