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Finding the Fourth Proportional to 195,099.20, 292,000.80 and 141,639.20

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Solution

The fourth proportional to 195,099.20, 292,000.80 and 141,639.20 is: 211,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,099.20 : 292,000.80 = 141,639.20 : x
  2. Step 2: Convert to fraction form
    195,099.20/292,000.80 = 141,639.20/x
  3. Step 3: Cross multiply
    195,099.20x = 292,000.80 × 141,639.20
  4. Step 4: Simplify right side
    195,099.20x = 41,358,759,711.36
  5. Step 5: Solve for x
    x = 41,358,759,711.36/195,099.20
  6. Step 6: Final answer
    x = 211,988.36

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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.