Home / 438,002.30-657,003.45-272,114.30

Finding the Fourth Proportional to 438,002.30, 657,003.45 and 272,114.30

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Solution

The fourth proportional to 438,002.30, 657,003.45 and 272,114.30 is: 408,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,002.30 : 657,003.45 = 272,114.30 : x
  2. Step 2: Convert to fraction form
    438,002.30/657,003.45 = 272,114.30/x
  3. Step 3: Cross multiply
    438,002.30x = 657,003.45 × 272,114.30
  4. Step 4: Simplify right side
    438,002.30x = 178,780,033,894.34
  5. Step 5: Solve for x
    x = 178,780,033,894.34/438,002.30
  6. Step 6: Final answer
    x = 408,171.45

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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.