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Finding the Fourth Proportional to 274,291.92, 378,521.10 and 153,432.63

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Solution

The fourth proportional to 274,291.92, 378,521.10 and 153,432.63 is: 211,736.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,291.92 : 378,521.10 = 153,432.63 : x
  2. Step 2: Convert to fraction form
    274,291.92/378,521.10 = 153,432.63/x
  3. Step 3: Cross multiply
    274,291.92x = 378,521.10 × 153,432.63
  4. Step 4: Simplify right side
    274,291.92x = 58,077,487,883.49
  5. Step 5: Solve for x
    x = 58,077,487,883.49/274,291.92
  6. Step 6: Final answer
    x = 211,736.05

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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.