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Finding the Fourth Proportional to 342,080.80, 472,072.20 and 191,177.80

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Solution

The fourth proportional to 342,080.80, 472,072.20 and 191,177.80 is: 263,825.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,080.80 : 472,072.20 = 191,177.80 : x
  2. Step 2: Convert to fraction form
    342,080.80/472,072.20 = 191,177.80/x
  3. Step 3: Cross multiply
    342,080.80x = 472,072.20 × 191,177.80
  4. Step 4: Simplify right side
    342,080.80x = 90,249,724,637.16
  5. Step 5: Solve for x
    x = 90,249,724,637.16/342,080.80
  6. Step 6: Final answer
    x = 263,825.75

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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.