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Finding the Fourth Proportional to 268,233.40, 402,350.10 and 143,817.40

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Solution

The fourth proportional to 268,233.40, 402,350.10 and 143,817.40 is: 215,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,233.40 : 402,350.10 = 143,817.40 : x
  2. Step 2: Convert to fraction form
    268,233.40/402,350.10 = 143,817.40/x
  3. Step 3: Cross multiply
    268,233.40x = 402,350.10 × 143,817.40
  4. Step 4: Simplify right side
    268,233.40x = 57,864,945,271.74
  5. Step 5: Solve for x
    x = 57,864,945,271.74/268,233.40
  6. Step 6: Final answer
    x = 215,726.10

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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.