Home / 274,423.22-378,649.67-153,541.05

Finding the Fourth Proportional to 274,423.22, 378,649.67 and 153,541.05

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Solution

The fourth proportional to 274,423.22, 378,649.67 and 153,541.05 is: 211,856.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,423.22 : 378,649.67 = 153,541.05 : x
  2. Step 2: Convert to fraction form
    274,423.22/378,649.67 = 153,541.05/x
  3. Step 3: Cross multiply
    274,423.22x = 378,649.67 × 153,541.05
  4. Step 4: Simplify right side
    274,423.22x = 58,138,266,589.98
  5. Step 5: Solve for x
    x = 58,138,266,589.98/274,423.22
  6. Step 6: Final answer
    x = 211,856.22

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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.