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Finding the Fourth Proportional to 302,534.80, 453,804.80 and 86,392.97

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Solution

The fourth proportional to 302,534.80, 453,804.80 and 86,392.97 is: 129,590.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,534.80 : 453,804.80 = 86,392.97 : x
  2. Step 2: Convert to fraction form
    302,534.80/453,804.80 = 86,392.97/x
  3. Step 3: Cross multiply
    302,534.80x = 453,804.80 × 86,392.97
  4. Step 4: Simplify right side
    302,534.80x = 39,205,544,472.26
  5. Step 5: Solve for x
    x = 39,205,544,472.26/302,534.80
  6. Step 6: Final answer
    x = 129,590.20

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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.