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Finding the Fourth Proportional to 288,446.51, 432,710.76 and 88,783.53

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Solution

The fourth proportional to 288,446.51, 432,710.76 and 88,783.53 is: 133,187.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,446.51 : 432,710.76 = 88,783.53 : x
  2. Step 2: Convert to fraction form
    288,446.51/432,710.76 = 88,783.53/x
  3. Step 3: Cross multiply
    288,446.51x = 432,710.76 × 88,783.53
  4. Step 4: Simplify right side
    288,446.51x = 38,417,588,741.78
  5. Step 5: Solve for x
    x = 38,417,588,741.78/288,446.51
  6. Step 6: Final answer
    x = 133,187.92

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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.