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Finding the Fourth Proportional to 240,547.80, 360,821.70 and 100,288.20

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Solution

The fourth proportional to 240,547.80, 360,821.70 and 100,288.20 is: 150,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,547.80 : 360,821.70 = 100,288.20 : x
  2. Step 2: Convert to fraction form
    240,547.80/360,821.70 = 100,288.20/x
  3. Step 3: Cross multiply
    240,547.80x = 360,821.70 × 100,288.20
  4. Step 4: Simplify right side
    240,547.80x = 36,186,158,813.94
  5. Step 5: Solve for x
    x = 36,186,158,813.94/240,547.80
  6. Step 6: Final answer
    x = 150,432.30

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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.