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Finding the Fourth Proportional to 315,335.70, 435,173.42 and 179,366.16

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Solution

The fourth proportional to 315,335.70, 435,173.42 and 179,366.16 is: 247,531.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,335.70 : 435,173.42 = 179,366.16 : x
  2. Step 2: Convert to fraction form
    315,335.70/435,173.42 = 179,366.16/x
  3. Step 3: Cross multiply
    315,335.70x = 435,173.42 × 179,366.16
  4. Step 4: Simplify right side
    315,335.70x = 78,055,385,279.47
  5. Step 5: Solve for x
    x = 78,055,385,279.47/315,335.70
  6. Step 6: Final answer
    x = 247,531.08

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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.