Home / 515,147.04-772,716.72-160,160.40

Finding the Fourth Proportional to 515,147.04, 772,716.72 and 160,160.40

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Solution

The fourth proportional to 515,147.04, 772,716.72 and 160,160.40 is: 240,239.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,147.04 : 772,716.72 = 160,160.40 : x
  2. Step 2: Convert to fraction form
    515,147.04/772,716.72 = 160,160.40/x
  3. Step 3: Cross multiply
    515,147.04x = 772,716.72 × 160,160.40
  4. Step 4: Simplify right side
    515,147.04x = 123,758,618,961.89
  5. Step 5: Solve for x
    x = 123,758,618,961.89/515,147.04
  6. Step 6: Final answer
    x = 240,239.41

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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.