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Finding the Fourth Proportional to 262,220.80, 393,428.40 and 104,562.40

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Solution

The fourth proportional to 262,220.80, 393,428.40 and 104,562.40 is: 156,882.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,220.80 : 393,428.40 = 104,562.40 : x
  2. Step 2: Convert to fraction form
    262,220.80/393,428.40 = 104,562.40/x
  3. Step 3: Cross multiply
    262,220.80x = 393,428.40 × 104,562.40
  4. Step 4: Simplify right side
    262,220.80x = 41,137,817,732.16
  5. Step 5: Solve for x
    x = 41,137,817,732.16/262,220.80
  6. Step 6: Final answer
    x = 156,882.36

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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.