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Finding the Fourth Proportional to 353,701, 487,026.42 and 266,612.64

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Solution

The fourth proportional to 353,701, 487,026.42 and 266,612.64 is: 367,110.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,701 : 487,026.42 = 266,612.64 : x
  2. Step 2: Convert to fraction form
    353,701/487,026.42 = 266,612.64/x
  3. Step 3: Cross multiply
    353,701x = 487,026.42 × 266,612.64
  4. Step 4: Simplify right side
    353,701x = 129,847,399,585.95
  5. Step 5: Solve for x
    x = 129,847,399,585.95/353,701
  6. Step 6: Final answer
    x = 367,110.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.