Home / 240,345.18-360,542.49-90,711.45

Finding the Fourth Proportional to 240,345.18, 360,542.49 and 90,711.45

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Solution

The fourth proportional to 240,345.18, 360,542.49 and 90,711.45 is: 136,076.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,345.18 : 360,542.49 = 90,711.45 : x
  2. Step 2: Convert to fraction form
    240,345.18/360,542.49 = 90,711.45/x
  3. Step 3: Cross multiply
    240,345.18x = 360,542.49 × 90,711.45
  4. Step 4: Simplify right side
    240,345.18x = 32,705,332,054.51
  5. Step 5: Solve for x
    x = 32,705,332,054.51/240,345.18
  6. Step 6: Final answer
    x = 136,076.50

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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.