Home / 205,490.60-308,279.10-116,671.40

Finding the Fourth Proportional to 205,490.60, 308,279.10 and 116,671.40

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Solution

The fourth proportional to 205,490.60, 308,279.10 and 116,671.40 is: 175,031.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,490.60 : 308,279.10 = 116,671.40 : x
  2. Step 2: Convert to fraction form
    205,490.60/308,279.10 = 116,671.40/x
  3. Step 3: Cross multiply
    205,490.60x = 308,279.10 × 116,671.40
  4. Step 4: Simplify right side
    205,490.60x = 35,967,354,187.74
  5. Step 5: Solve for x
    x = 35,967,354,187.74/205,490.60
  6. Step 6: Final answer
    x = 175,031.63

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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.