Home / 436,764.64-655,146.75-121,221.46

Finding the Fourth Proportional to 436,764.64, 655,146.75 and 121,221.46

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Solution

The fourth proportional to 436,764.64, 655,146.75 and 121,221.46 is: 181,832.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,764.64 : 655,146.75 = 121,221.46 : x
  2. Step 2: Convert to fraction form
    436,764.64/655,146.75 = 121,221.46/x
  3. Step 3: Cross multiply
    436,764.64x = 655,146.75 × 121,221.46
  4. Step 4: Simplify right side
    436,764.64x = 79,417,845,549.26
  5. Step 5: Solve for x
    x = 79,417,845,549.26/436,764.64
  6. Step 6: Final answer
    x = 181,832.13

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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.