Home / 262,012.20-393,018.30-72,472.20

Finding the Fourth Proportional to 262,012.20, 393,018.30 and 72,472.20

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Solution

The fourth proportional to 262,012.20, 393,018.30 and 72,472.20 is: 108,708.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,012.20 : 393,018.30 = 72,472.20 : x
  2. Step 2: Convert to fraction form
    262,012.20/393,018.30 = 72,472.20/x
  3. Step 3: Cross multiply
    262,012.20x = 393,018.30 × 72,472.20
  4. Step 4: Simplify right side
    262,012.20x = 28,482,900,841.26
  5. Step 5: Solve for x
    x = 28,482,900,841.26/262,012.20
  6. Step 6: Final answer
    x = 108,708.30

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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.