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Finding the Fourth Proportional to 287,849.48, 431,803.02 and 88,167.56

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Solution

The fourth proportional to 287,849.48, 431,803.02 and 88,167.56 is: 132,260.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,849.48 : 431,803.02 = 88,167.56 : x
  2. Step 2: Convert to fraction form
    287,849.48/431,803.02 = 88,167.56/x
  3. Step 3: Cross multiply
    287,849.48x = 431,803.02 × 88,167.56
  4. Step 4: Simplify right side
    287,849.48x = 38,071,018,674.03
  5. Step 5: Solve for x
    x = 38,071,018,674.03/287,849.48
  6. Step 6: Final answer
    x = 132,260.16

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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.