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Finding the Fourth Proportional to 288,440.76, 432,710.28 and 88,756.68

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Solution

The fourth proportional to 288,440.76, 432,710.28 and 88,756.68 is: 133,150.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,440.76 : 432,710.28 = 88,756.68 : x
  2. Step 2: Convert to fraction form
    288,440.76/432,710.28 = 88,756.68/x
  3. Step 3: Cross multiply
    288,440.76x = 432,710.28 × 88,756.68
  4. Step 4: Simplify right side
    288,440.76x = 38,405,927,854.67
  5. Step 5: Solve for x
    x = 38,405,927,854.67/288,440.76
  6. Step 6: Final answer
    x = 133,150.14

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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.