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Finding the Fourth Proportional to 369,603.18, 554,399.91 and 89,118

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Solution

The fourth proportional to 369,603.18, 554,399.91 and 89,118 is: 133,675.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,603.18 : 554,399.91 = 89,118 : x
  2. Step 2: Convert to fraction form
    369,603.18/554,399.91 = 89,118/x
  3. Step 3: Cross multiply
    369,603.18x = 554,399.91 × 89,118
  4. Step 4: Simplify right side
    369,603.18x = 49,407,011,179.38
  5. Step 5: Solve for x
    x = 49,407,011,179.38/369,603.18
  6. Step 6: Final answer
    x = 133,675.83

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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.