Home / 261,492.20-391,893.64-103,634.52

Finding the Fourth Proportional to 261,492.20, 391,893.64 and 103,634.52

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Solution

The fourth proportional to 261,492.20, 391,893.64 and 103,634.52 is: 155,315.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,492.20 : 391,893.64 = 103,634.52 : x
  2. Step 2: Convert to fraction form
    261,492.20/391,893.64 = 103,634.52/x
  3. Step 3: Cross multiply
    261,492.20x = 391,893.64 × 103,634.52
  4. Step 4: Simplify right side
    261,492.20x = 40,613,709,272.45
  5. Step 5: Solve for x
    x = 40,613,709,272.45/261,492.20
  6. Step 6: Final answer
    x = 155,315.18

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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.