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Finding the Fourth Proportional to 273,935.20, 378,023.30 and 153,077.48

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Solution

The fourth proportional to 273,935.20, 378,023.30 and 153,077.48 is: 211,242.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,935.20 : 378,023.30 = 153,077.48 : x
  2. Step 2: Convert to fraction form
    273,935.20/378,023.30 = 153,077.48/x
  3. Step 3: Cross multiply
    273,935.20x = 378,023.30 × 153,077.48
  4. Step 4: Simplify right side
    273,935.20x = 57,866,854,145.28
  5. Step 5: Solve for x
    x = 57,866,854,145.28/273,935.20
  6. Step 6: Final answer
    x = 211,242.86

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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.