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Finding the Fourth Proportional to 261,044.70, 391,567.05 and 245,492.70

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Solution

The fourth proportional to 261,044.70, 391,567.05 and 245,492.70 is: 368,239.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,044.70 : 391,567.05 = 245,492.70 : x
  2. Step 2: Convert to fraction form
    261,044.70/391,567.05 = 245,492.70/x
  3. Step 3: Cross multiply
    261,044.70x = 391,567.05 × 245,492.70
  4. Step 4: Simplify right side
    261,044.70x = 96,126,852,335.54
  5. Step 5: Solve for x
    x = 96,126,852,335.54/261,044.70
  6. Step 6: Final answer
    x = 368,239.05

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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.