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Finding the Fourth Proportional to 288,492.68, 432,779.98 and 88,829.64

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Solution

The fourth proportional to 288,492.68, 432,779.98 and 88,829.64 is: 133,257.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,492.68 : 432,779.98 = 88,829.64 : x
  2. Step 2: Convert to fraction form
    288,492.68/432,779.98 = 88,829.64/x
  3. Step 3: Cross multiply
    288,492.68x = 432,779.98 × 88,829.64
  4. Step 4: Simplify right side
    288,492.68x = 38,443,689,822.61
  5. Step 5: Solve for x
    x = 38,443,689,822.61/288,492.68
  6. Step 6: Final answer
    x = 133,257.07

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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.