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Finding the Fourth Proportional to 302,913.80, 418,002.18 and 166,940.18

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Solution

The fourth proportional to 302,913.80, 418,002.18 and 166,940.18 is: 230,367.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,913.80 : 418,002.18 = 166,940.18 : x
  2. Step 2: Convert to fraction form
    302,913.80/418,002.18 = 166,940.18/x
  3. Step 3: Cross multiply
    302,913.80x = 418,002.18 × 166,940.18
  4. Step 4: Simplify right side
    302,913.80x = 69,781,359,169.59
  5. Step 5: Solve for x
    x = 69,781,359,169.59/302,913.80
  6. Step 6: Final answer
    x = 230,367.05

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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.