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Finding the Fourth Proportional to 438,111.70, 657,167.55 and 248,498.80

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Solution

The fourth proportional to 438,111.70, 657,167.55 and 248,498.80 is: 372,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,111.70 : 657,167.55 = 248,498.80 : x
  2. Step 2: Convert to fraction form
    438,111.70/657,167.55 = 248,498.80/x
  3. Step 3: Cross multiply
    438,111.70x = 657,167.55 × 248,498.80
  4. Step 4: Simplify right side
    438,111.70x = 163,305,347,573.94
  5. Step 5: Solve for x
    x = 163,305,347,573.94/438,111.70
  6. Step 6: Final answer
    x = 372,748.20

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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.