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Finding the Fourth Proportional to 268,307.60, 402,000.60 and 141,760.40

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Solution

The fourth proportional to 268,307.60, 402,000.60 and 141,760.40 is: 212,397.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,307.60 : 402,000.60 = 141,760.40 : x
  2. Step 2: Convert to fraction form
    268,307.60/402,000.60 = 141,760.40/x
  3. Step 3: Cross multiply
    268,307.60x = 402,000.60 × 141,760.40
  4. Step 4: Simplify right side
    268,307.60x = 56,987,765,856.24
  5. Step 5: Solve for x
    x = 56,987,765,856.24/268,307.60
  6. Step 6: Final answer
    x = 212,397.14

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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.