Home / 315,296.96-435,119.04-172,066.21

Finding the Fourth Proportional to 315,296.96, 435,119.04 and 172,066.21

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Solution

The fourth proportional to 315,296.96, 435,119.04 and 172,066.21 is: 237,456.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,296.96 : 435,119.04 = 172,066.21 : x
  2. Step 2: Convert to fraction form
    315,296.96/435,119.04 = 172,066.21/x
  3. Step 3: Cross multiply
    315,296.96x = 435,119.04 × 172,066.21
  4. Step 4: Simplify right side
    315,296.96x = 74,869,283,023.84
  5. Step 5: Solve for x
    x = 74,869,283,023.84/315,296.96
  6. Step 6: Final answer
    x = 237,456.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.