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Finding the Fourth Proportional to 268,001.40, 402,002.10 and 168,274.20

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Solution

The fourth proportional to 268,001.40, 402,002.10 and 168,274.20 is: 252,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,001.40 : 402,002.10 = 168,274.20 : x
  2. Step 2: Convert to fraction form
    268,001.40/402,002.10 = 168,274.20/x
  3. Step 3: Cross multiply
    268,001.40x = 402,002.10 × 168,274.20
  4. Step 4: Simplify right side
    268,001.40x = 67,646,581,775.82
  5. Step 5: Solve for x
    x = 67,646,581,775.82/268,001.40
  6. Step 6: Final answer
    x = 252,411.30

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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.