Home / 219,108.28-328,798.48-140,279.08

Finding the Fourth Proportional to 219,108.28, 328,798.48 and 140,279.08

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Solution

The fourth proportional to 219,108.28, 328,798.48 and 140,279.08 is: 210,505.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,108.28 : 328,798.48 = 140,279.08 : x
  2. Step 2: Convert to fraction form
    219,108.28/328,798.48 = 140,279.08/x
  3. Step 3: Cross multiply
    219,108.28x = 328,798.48 × 140,279.08
  4. Step 4: Simplify right side
    219,108.28x = 46,123,548,279.80
  5. Step 5: Solve for x
    x = 46,123,548,279.80/219,108.28
  6. Step 6: Final answer
    x = 210,505.73

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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.