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Finding the Fourth Proportional to 235,306.11, 324,730.25 and 138,492.42

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Solution

The fourth proportional to 235,306.11, 324,730.25 and 138,492.42 is: 191,124.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,306.11 : 324,730.25 = 138,492.42 : x
  2. Step 2: Convert to fraction form
    235,306.11/324,730.25 = 138,492.42/x
  3. Step 3: Cross multiply
    235,306.11x = 324,730.25 × 138,492.42
  4. Step 4: Simplify right side
    235,306.11x = 44,972,678,169.71
  5. Step 5: Solve for x
    x = 44,972,678,169.71/235,306.11
  6. Step 6: Final answer
    x = 191,124.14

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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.