Home / 250,276.80-345,386.40-137,092.20

Finding the Fourth Proportional to 250,276.80, 345,386.40 and 137,092.20

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Solution

The fourth proportional to 250,276.80, 345,386.40 and 137,092.20 is: 189,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,276.80 : 345,386.40 = 137,092.20 : x
  2. Step 2: Convert to fraction form
    250,276.80/345,386.40 = 137,092.20/x
  3. Step 3: Cross multiply
    250,276.80x = 345,386.40 × 137,092.20
  4. Step 4: Simplify right side
    250,276.80x = 47,349,781,426.08
  5. Step 5: Solve for x
    x = 47,349,781,426.08/250,276.80
  6. Step 6: Final answer
    x = 189,189.65

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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.