Home / 305,279.15-457,803.70-127,798.43

Finding the Fourth Proportional to 305,279.15, 457,803.70 and 127,798.43

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Solution

The fourth proportional to 305,279.15, 457,803.70 and 127,798.43 is: 191,649.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,279.15 : 457,803.70 = 127,798.43 : x
  2. Step 2: Convert to fraction form
    305,279.15/457,803.70 = 127,798.43/x
  3. Step 3: Cross multiply
    305,279.15x = 457,803.70 × 127,798.43
  4. Step 4: Simplify right side
    305,279.15x = 58,506,591,499.68
  5. Step 5: Solve for x
    x = 58,506,591,499.68/305,279.15
  6. Step 6: Final answer
    x = 191,649.49

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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.