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Finding the Fourth Proportional to 378,077.90, 567,116.85 and 346,585.10

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Solution

The fourth proportional to 378,077.90, 567,116.85 and 346,585.10 is: 519,877.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,077.90 : 567,116.85 = 346,585.10 : x
  2. Step 2: Convert to fraction form
    378,077.90/567,116.85 = 346,585.10/x
  3. Step 3: Cross multiply
    378,077.90x = 567,116.85 × 346,585.10
  4. Step 4: Simplify right side
    378,077.90x = 196,554,250,168.94
  5. Step 5: Solve for x
    x = 196,554,250,168.94/378,077.90
  6. Step 6: Final answer
    x = 519,877.65

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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.