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Finding the Fourth Proportional to 262,229.40, 393,344.10 and 156,994.20

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Solution

The fourth proportional to 262,229.40, 393,344.10 and 156,994.20 is: 235,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,229.40 : 393,344.10 = 156,994.20 : x
  2. Step 2: Convert to fraction form
    262,229.40/393,344.10 = 156,994.20/x
  3. Step 3: Cross multiply
    262,229.40x = 393,344.10 × 156,994.20
  4. Step 4: Simplify right side
    262,229.40x = 61,752,742,304.22
  5. Step 5: Solve for x
    x = 61,752,742,304.22/262,229.40
  6. Step 6: Final answer
    x = 235,491.30

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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.