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Finding the Fourth Proportional to 552,625.40, 828,938.10 and 178,686.20

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Solution

The fourth proportional to 552,625.40, 828,938.10 and 178,686.20 is: 268,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,625.40 : 828,938.10 = 178,686.20 : x
  2. Step 2: Convert to fraction form
    552,625.40/828,938.10 = 178,686.20/x
  3. Step 3: Cross multiply
    552,625.40x = 828,938.10 × 178,686.20
  4. Step 4: Simplify right side
    552,625.40x = 148,119,799,124.22
  5. Step 5: Solve for x
    x = 148,119,799,124.22/552,625.40
  6. Step 6: Final answer
    x = 268,029.30

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Similar ratio
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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.