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Finding the Fourth Proportional to 288,614.94, 432,979.11 and 88,901.34

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Solution

The fourth proportional to 288,614.94, 432,979.11 and 88,901.34 is: 133,369.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,614.94 : 432,979.11 = 88,901.34 : x
  2. Step 2: Convert to fraction form
    288,614.94/432,979.11 = 88,901.34/x
  3. Step 3: Cross multiply
    288,614.94x = 432,979.11 × 88,901.34
  4. Step 4: Simplify right side
    288,614.94x = 38,492,423,071.01
  5. Step 5: Solve for x
    x = 38,492,423,071.01/288,614.94
  6. Step 6: Final answer
    x = 133,369.48

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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.