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Finding the Fourth Proportional to 426,564.84, 639,355.08 and 160,155.42

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Solution

The fourth proportional to 426,564.84, 639,355.08 and 160,155.42 is: 240,048.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,564.84 : 639,355.08 = 160,155.42 : x
  2. Step 2: Convert to fraction form
    426,564.84/639,355.08 = 160,155.42/x
  3. Step 3: Cross multiply
    426,564.84x = 639,355.08 × 160,155.42
  4. Step 4: Simplify right side
    426,564.84x = 102,396,181,366.53
  5. Step 5: Solve for x
    x = 102,396,181,366.53/426,564.84
  6. Step 6: Final answer
    x = 240,048.34

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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.