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Finding the Fourth Proportional to 438,167.70, 657,251.55 and 248,554.80

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Solution

The fourth proportional to 438,167.70, 657,251.55 and 248,554.80 is: 372,832.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,167.70 : 657,251.55 = 248,554.80 : x
  2. Step 2: Convert to fraction form
    438,167.70/657,251.55 = 248,554.80/x
  3. Step 3: Cross multiply
    438,167.70x = 657,251.55 × 248,554.80
  4. Step 4: Simplify right side
    438,167.70x = 163,363,027,559.94
  5. Step 5: Solve for x
    x = 163,363,027,559.94/438,167.70
  6. Step 6: Final answer
    x = 372,832.20

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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.