Home / 305,649.16-457,931.34-127,764.04

Finding the Fourth Proportional to 305,649.16, 457,931.34 and 127,764.04

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Solution

The fourth proportional to 305,649.16, 457,931.34 and 127,764.04 is: 191,419.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,649.16 : 457,931.34 = 127,764.04 : x
  2. Step 2: Convert to fraction form
    305,649.16/457,931.34 = 127,764.04/x
  3. Step 3: Cross multiply
    305,649.16x = 457,931.34 × 127,764.04
  4. Step 4: Simplify right side
    305,649.16x = 58,507,158,041.01
  5. Step 5: Solve for x
    x = 58,507,158,041.01/305,649.16
  6. Step 6: Final answer
    x = 191,419.33

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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.