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Finding the Fourth Proportional to 348,000.60, 522,000.90 and 259,427.10

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Solution

The fourth proportional to 348,000.60, 522,000.90 and 259,427.10 is: 389,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,000.60 : 522,000.90 = 259,427.10 : x
  2. Step 2: Convert to fraction form
    348,000.60/522,000.90 = 259,427.10/x
  3. Step 3: Cross multiply
    348,000.60x = 522,000.90 × 259,427.10
  4. Step 4: Simplify right side
    348,000.60x = 135,421,179,684.39
  5. Step 5: Solve for x
    x = 135,421,179,684.39/348,000.60
  6. Step 6: Final answer
    x = 389,140.65

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Similar ratio
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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.