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Finding the Fourth Proportional to 305,029.76, 457,488.44 and 127,489.12

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Solution

The fourth proportional to 305,029.76, 457,488.44 and 127,489.12 is: 191,210.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,029.76 : 457,488.44 = 127,489.12 : x
  2. Step 2: Convert to fraction form
    305,029.76/457,488.44 = 127,489.12/x
  3. Step 3: Cross multiply
    305,029.76x = 457,488.44 × 127,489.12
  4. Step 4: Simplify right side
    305,029.76x = 58,324,798,625.77
  5. Step 5: Solve for x
    x = 58,324,798,625.77/305,029.76
  6. Step 6: Final answer
    x = 191,210.19

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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.