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Finding the Fourth Proportional to 288,673.60, 433,050.49 and 89,009.68

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Solution

The fourth proportional to 288,673.60, 433,050.49 and 89,009.68 is: 133,526.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,673.60 : 433,050.49 = 89,009.68 : x
  2. Step 2: Convert to fraction form
    288,673.60/433,050.49 = 89,009.68/x
  3. Step 3: Cross multiply
    288,673.60x = 433,050.49 × 89,009.68
  4. Step 4: Simplify right side
    288,673.60x = 38,545,684,567.38
  5. Step 5: Solve for x
    x = 38,545,684,567.38/288,673.60
  6. Step 6: Final answer
    x = 133,526.88

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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.