Home / 436,865.20-655,298.04-121,322.08

Finding the Fourth Proportional to 436,865.20, 655,298.04 and 121,322.08

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Solution

The fourth proportional to 436,865.20, 655,298.04 and 121,322.08 is: 181,983.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,865.20 : 655,298.04 = 121,322.08 : x
  2. Step 2: Convert to fraction form
    436,865.20/655,298.04 = 121,322.08/x
  3. Step 3: Cross multiply
    436,865.20x = 655,298.04 × 121,322.08
  4. Step 4: Simplify right side
    436,865.20x = 79,502,121,232.72
  5. Step 5: Solve for x
    x = 79,502,121,232.72/436,865.20
  6. Step 6: Final answer
    x = 181,983.19

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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.