Home / 224,138.18-309,310.81-127,342.21

Finding the Fourth Proportional to 224,138.18, 309,310.81 and 127,342.21

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Solution

The fourth proportional to 224,138.18, 309,310.81 and 127,342.21 is: 175,732.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,138.18 : 309,310.81 = 127,342.21 : x
  2. Step 2: Convert to fraction form
    224,138.18/309,310.81 = 127,342.21/x
  3. Step 3: Cross multiply
    224,138.18x = 309,310.81 × 127,342.21
  4. Step 4: Simplify right side
    224,138.18x = 39,388,319,939.03
  5. Step 5: Solve for x
    x = 39,388,319,939.03/224,138.18
  6. Step 6: Final answer
    x = 175,732.31

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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.