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Finding the Fourth Proportional to 208,344.66, 312,423.66 and 124,144.62

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Solution

The fourth proportional to 208,344.66, 312,423.66 and 124,144.62 is: 186,161.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,344.66 : 312,423.66 = 124,144.62 : x
  2. Step 2: Convert to fraction form
    208,344.66/312,423.66 = 124,144.62/x
  3. Step 3: Cross multiply
    208,344.66x = 312,423.66 × 124,144.62
  4. Step 4: Simplify right side
    208,344.66x = 38,785,716,549.71
  5. Step 5: Solve for x
    x = 38,785,716,549.71/208,344.66
  6. Step 6: Final answer
    x = 186,161.32

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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.