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Finding the Fourth Proportional to 288,301.96, 432,494.29 and 88,639.11

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Solution

The fourth proportional to 288,301.96, 432,494.29 and 88,639.11 is: 132,971.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,301.96 : 432,494.29 = 88,639.11 : x
  2. Step 2: Convert to fraction form
    288,301.96/432,494.29 = 88,639.11/x
  3. Step 3: Cross multiply
    288,301.96x = 432,494.29 × 88,639.11
  4. Step 4: Simplify right side
    288,301.96x = 38,335,908,557.89
  5. Step 5: Solve for x
    x = 38,335,908,557.89/288,301.96
  6. Step 6: Final answer
    x = 132,971.38

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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.