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Finding the Fourth Proportional to 274,560.64, 378,893.58 and 153,730.25

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Solution

The fourth proportional to 274,560.64, 378,893.58 and 153,730.25 is: 212,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,560.64 : 378,893.58 = 153,730.25 : x
  2. Step 2: Convert to fraction form
    274,560.64/378,893.58 = 153,730.25/x
  3. Step 3: Cross multiply
    274,560.64x = 378,893.58 × 153,730.25
  4. Step 4: Simplify right side
    274,560.64x = 58,247,406,722.70
  5. Step 5: Solve for x
    x = 58,247,406,722.70/274,560.64
  6. Step 6: Final answer
    x = 212,147.70

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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.