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Finding the Fourth Proportional to 341,281.60, 512,116.80 and 131,070.40

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Solution

The fourth proportional to 341,281.60, 512,116.80 and 131,070.40 is: 196,680.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,281.60 : 512,116.80 = 131,070.40 : x
  2. Step 2: Convert to fraction form
    341,281.60/512,116.80 = 131,070.40/x
  3. Step 3: Cross multiply
    341,281.60x = 512,116.80 × 131,070.40
  4. Step 4: Simplify right side
    341,281.60x = 67,123,353,822.72
  5. Step 5: Solve for x
    x = 67,123,353,822.72/341,281.60
  6. Step 6: Final answer
    x = 196,680.26

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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.