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Finding the Fourth Proportional to 438,228.80, 658,034.40 and 251,604.80

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Solution

The fourth proportional to 438,228.80, 658,034.40 and 251,604.80 is: 377,804.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,228.80 : 658,034.40 = 251,604.80 : x
  2. Step 2: Convert to fraction form
    438,228.80/658,034.40 = 251,604.80/x
  3. Step 3: Cross multiply
    438,228.80x = 658,034.40 × 251,604.80
  4. Step 4: Simplify right side
    438,228.80x = 165,564,613,605.12
  5. Step 5: Solve for x
    x = 165,564,613,605.12/438,228.80
  6. Step 6: Final answer
    x = 377,804.05

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1.5x scale

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.