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Finding the Fourth Proportional to 240,763.86, 360,948.69 and 90,919.08

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Solution

The fourth proportional to 240,763.86, 360,948.69 and 90,919.08 is: 136,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,763.86 : 360,948.69 = 90,919.08 : x
  2. Step 2: Convert to fraction form
    240,763.86/360,948.69 = 90,919.08/x
  3. Step 3: Cross multiply
    240,763.86x = 360,948.69 × 90,919.08
  4. Step 4: Simplify right side
    240,763.86x = 32,817,122,822.01
  5. Step 5: Solve for x
    x = 32,817,122,822.01/240,763.86
  6. Step 6: Final answer
    x = 136,304.19

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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.