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Finding the Fourth Proportional to 315,486.24, 435,365.10 and 179,517.12

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Solution

The fourth proportional to 315,486.24, 435,365.10 and 179,517.12 is: 247,730.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,486.24 : 435,365.10 = 179,517.12 : x
  2. Step 2: Convert to fraction form
    315,486.24/435,365.10 = 179,517.12/x
  3. Step 3: Cross multiply
    315,486.24x = 435,365.10 × 179,517.12
  4. Step 4: Simplify right side
    315,486.24x = 78,155,488,900.51
  5. Step 5: Solve for x
    x = 78,155,488,900.51/315,486.24
  6. Step 6: Final answer
    x = 247,730.26

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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.