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Finding the Fourth Proportional to 261,044.90, 391,567.35 and 160,880.30

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Solution

The fourth proportional to 261,044.90, 391,567.35 and 160,880.30 is: 241,320.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,044.90 : 391,567.35 = 160,880.30 : x
  2. Step 2: Convert to fraction form
    261,044.90/391,567.35 = 160,880.30/x
  3. Step 3: Cross multiply
    261,044.90x = 391,567.35 × 160,880.30
  4. Step 4: Simplify right side
    261,044.90x = 62,995,472,738.21
  5. Step 5: Solve for x
    x = 62,995,472,738.21/261,044.90
  6. Step 6: Final answer
    x = 241,320.45

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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.