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Finding the Fourth Proportional to 140,915.60, 211,488.60 and 136,307.60

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Solution

The fourth proportional to 140,915.60, 211,488.60 and 136,307.60 is: 204,572.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,915.60 : 211,488.60 = 136,307.60 : x
  2. Step 2: Convert to fraction form
    140,915.60/211,488.60 = 136,307.60/x
  3. Step 3: Cross multiply
    140,915.60x = 211,488.60 × 136,307.60
  4. Step 4: Simplify right side
    140,915.60x = 28,827,503,493.36
  5. Step 5: Solve for x
    x = 28,827,503,493.36/140,915.60
  6. Step 6: Final answer
    x = 204,572.83

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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.