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Finding the Fourth Proportional to 240,800.80, 361,071.60 and 100,400.80

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Solution

The fourth proportional to 240,800.80, 361,071.60 and 100,400.80 is: 150,547.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,800.80 : 361,071.60 = 100,400.80 : x
  2. Step 2: Convert to fraction form
    240,800.80/361,071.60 = 100,400.80/x
  3. Step 3: Cross multiply
    240,800.80x = 361,071.60 × 100,400.80
  4. Step 4: Simplify right side
    240,800.80x = 36,251,877,497.28
  5. Step 5: Solve for x
    x = 36,251,877,497.28/240,800.80
  6. Step 6: Final answer
    x = 150,547.16

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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.