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Finding the Fourth Proportional to 240,429.30, 360,643.95 and 100,169.70

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Solution

The fourth proportional to 240,429.30, 360,643.95 and 100,169.70 is: 150,254.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,429.30 : 360,643.95 = 100,169.70 : x
  2. Step 2: Convert to fraction form
    240,429.30/360,643.95 = 100,169.70/x
  3. Step 3: Cross multiply
    240,429.30x = 360,643.95 × 100,169.70
  4. Step 4: Simplify right side
    240,429.30x = 36,125,596,278.32
  5. Step 5: Solve for x
    x = 36,125,596,278.32/240,429.30
  6. Step 6: Final answer
    x = 150,254.55

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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.