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Finding the Fourth Proportional to 219,758.69, 302,724.12 and 187,387.89

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Solution

The fourth proportional to 219,758.69, 302,724.12 and 187,387.89 is: 258,132.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,758.69 : 302,724.12 = 187,387.89 : x
  2. Step 2: Convert to fraction form
    219,758.69/302,724.12 = 187,387.89/x
  3. Step 3: Cross multiply
    219,758.69x = 302,724.12 × 187,387.89
  4. Step 4: Simplify right side
    219,758.69x = 56,726,834,098.91
  5. Step 5: Solve for x
    x = 56,726,834,098.91/219,758.69
  6. Step 6: Final answer
    x = 258,132.39

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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.