Home / 287,417.14-431,178.02-97,867.82

Finding the Fourth Proportional to 287,417.14, 431,178.02 and 97,867.82

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Solution

The fourth proportional to 287,417.14, 431,178.02 and 97,867.82 is: 146,819.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,417.14 : 431,178.02 = 97,867.82 : x
  2. Step 2: Convert to fraction form
    287,417.14/431,178.02 = 97,867.82/x
  3. Step 3: Cross multiply
    287,417.14x = 431,178.02 × 97,867.82
  4. Step 4: Simplify right side
    287,417.14x = 42,198,452,849.32
  5. Step 5: Solve for x
    x = 42,198,452,849.32/287,417.14
  6. Step 6: Final answer
    x = 146,819.54

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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.