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Finding the Fourth Proportional to 240,058.80, 360,141.78 and 90,300.33

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Solution

The fourth proportional to 240,058.80, 360,141.78 and 90,300.33 is: 135,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,058.80 : 360,141.78 = 90,300.33 : x
  2. Step 2: Convert to fraction form
    240,058.80/360,141.78 = 90,300.33/x
  3. Step 3: Cross multiply
    240,058.80x = 360,141.78 × 90,300.33
  4. Step 4: Simplify right side
    240,058.80x = 32,520,921,580.79
  5. Step 5: Solve for x
    x = 32,520,921,580.79/240,058.80
  6. Step 6: Final answer
    x = 135,470.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.