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Finding the Fourth Proportional to 239,290.74, 330,340.78 and 185,454.90

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Solution

The fourth proportional to 239,290.74, 330,340.78 and 185,454.90 is: 256,020.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,290.74 : 330,340.78 = 185,454.90 : x
  2. Step 2: Convert to fraction form
    239,290.74/330,340.78 = 185,454.90/x
  3. Step 3: Cross multiply
    239,290.74x = 330,340.78 × 185,454.90
  4. Step 4: Simplify right side
    239,290.74x = 61,263,316,320.82
  5. Step 5: Solve for x
    x = 61,263,316,320.82/239,290.74
  6. Step 6: Final answer
    x = 256,020.42

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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.