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Finding the Fourth Proportional to 442,656.20, 610,766.39 and 261,270.87

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Solution

The fourth proportional to 442,656.20, 610,766.39 and 261,270.87 is: 360,495.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,656.20 : 610,766.39 = 261,270.87 : x
  2. Step 2: Convert to fraction form
    442,656.20/610,766.39 = 261,270.87/x
  3. Step 3: Cross multiply
    442,656.20x = 610,766.39 × 261,270.87
  4. Step 4: Simplify right side
    442,656.20x = 159,575,464,995.99
  5. Step 5: Solve for x
    x = 159,575,464,995.99/442,656.20
  6. Step 6: Final answer
    x = 360,495.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.