Home / 287,554.05-431,382.92-98,003.93

Finding the Fourth Proportional to 287,554.05, 431,382.92 and 98,003.93

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Solution

The fourth proportional to 287,554.05, 431,382.92 and 98,003.93 is: 147,023.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,554.05 : 431,382.92 = 98,003.93 : x
  2. Step 2: Convert to fraction form
    287,554.05/431,382.92 = 98,003.93/x
  3. Step 3: Cross multiply
    287,554.05x = 431,382.92 × 98,003.93
  4. Step 4: Simplify right side
    287,554.05x = 42,277,218,847.94
  5. Step 5: Solve for x
    x = 42,277,218,847.94/287,554.05
  6. Step 6: Final answer
    x = 147,023.56

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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.