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Finding the Fourth Proportional to 250,698.38, 345,963.83 and 137,521.13

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Solution

The fourth proportional to 250,698.38, 345,963.83 and 137,521.13 is: 189,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,698.38 : 345,963.83 = 137,521.13 : x
  2. Step 2: Convert to fraction form
    250,698.38/345,963.83 = 137,521.13/x
  3. Step 3: Cross multiply
    250,698.38x = 345,963.83 × 137,521.13
  4. Step 4: Simplify right side
    250,698.38x = 47,577,334,423.30
  5. Step 5: Solve for x
    x = 47,577,334,423.30/250,698.38
  6. Step 6: Final answer
    x = 189,779.19

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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.