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Finding the Fourth Proportional to 268,520.40, 403,091.80 and 144,104.40

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Solution

The fourth proportional to 268,520.40, 403,091.80 and 144,104.40 is: 216,323.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,520.40 : 403,091.80 = 144,104.40 : x
  2. Step 2: Convert to fraction form
    268,520.40/403,091.80 = 144,104.40/x
  3. Step 3: Cross multiply
    268,520.40x = 403,091.80 × 144,104.40
  4. Step 4: Simplify right side
    268,520.40x = 58,087,301,983.92
  5. Step 5: Solve for x
    x = 58,087,301,983.92/268,520.40
  6. Step 6: Final answer
    x = 216,323.61

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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.