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Finding the Fourth Proportional to 215,369.76, 323,055.36 and 104,484

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Solution

The fourth proportional to 215,369.76, 323,055.36 and 104,484 is: 156,726.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,369.76 : 323,055.36 = 104,484 : x
  2. Step 2: Convert to fraction form
    215,369.76/323,055.36 = 104,484/x
  3. Step 3: Cross multiply
    215,369.76x = 323,055.36 × 104,484
  4. Step 4: Simplify right side
    215,369.76x = 33,754,116,234.24
  5. Step 5: Solve for x
    x = 33,754,116,234.24/215,369.76
  6. Step 6: Final answer
    x = 156,726.35

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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.