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Finding the Fourth Proportional to 258,488.01, 356,710.03 and 145,310.76

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Solution

The fourth proportional to 258,488.01, 356,710.03 and 145,310.76 is: 200,526.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,488.01 : 356,710.03 = 145,310.76 : x
  2. Step 2: Convert to fraction form
    258,488.01/356,710.03 = 145,310.76/x
  3. Step 3: Cross multiply
    258,488.01x = 356,710.03 × 145,310.76
  4. Step 4: Simplify right side
    258,488.01x = 51,833,805,195.65
  5. Step 5: Solve for x
    x = 51,833,805,195.65/258,488.01
  6. Step 6: Final answer
    x = 200,526.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.