Home / 250,278.72-345,382.54-135,554.70

Finding the Fourth Proportional to 250,278.72, 345,382.54 and 135,554.70

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Solution

The fourth proportional to 250,278.72, 345,382.54 and 135,554.70 is: 187,064.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,278.72 : 345,382.54 = 135,554.70 : x
  2. Step 2: Convert to fraction form
    250,278.72/345,382.54 = 135,554.70/x
  3. Step 3: Cross multiply
    250,278.72x = 345,382.54 × 135,554.70
  4. Step 4: Simplify right side
    250,278.72x = 46,818,226,594.94
  5. Step 5: Solve for x
    x = 46,818,226,594.94/250,278.72
  6. Step 6: Final answer
    x = 187,064.35

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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.