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Finding the Fourth Proportional to 306,677.25, 423,214.47 and 170,708.22

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Solution

The fourth proportional to 306,677.25, 423,214.47 and 170,708.22 is: 235,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,677.25 : 423,214.47 = 170,708.22 : x
  2. Step 2: Convert to fraction form
    306,677.25/423,214.47 = 170,708.22/x
  3. Step 3: Cross multiply
    306,677.25x = 423,214.47 × 170,708.22
  4. Step 4: Simplify right side
    306,677.25x = 72,246,188,851.94
  5. Step 5: Solve for x
    x = 72,246,188,851.94/306,677.25
  6. Step 6: Final answer
    x = 235,577.27

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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.