Home / 436,835.16-655,253-121,292.08

Finding the Fourth Proportional to 436,835.16, 655,253 and 121,292.08

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Solution

The fourth proportional to 436,835.16, 655,253 and 121,292.08 is: 181,938.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,835.16 : 655,253 = 121,292.08 : x
  2. Step 2: Convert to fraction form
    436,835.16/655,253 = 121,292.08/x
  3. Step 3: Cross multiply
    436,835.16x = 655,253 × 121,292.08
  4. Step 4: Simplify right side
    436,835.16x = 79,476,999,296.24
  5. Step 5: Solve for x
    x = 79,476,999,296.24/436,835.16
  6. Step 6: Final answer
    x = 181,938.19

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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.