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Finding the Fourth Proportional to 218,937.43, 302,133.50 and 118,335.43

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Solution

The fourth proportional to 218,937.43, 302,133.50 and 118,335.43 is: 163,302.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,937.43 : 302,133.50 = 118,335.43 : x
  2. Step 2: Convert to fraction form
    218,937.43/302,133.50 = 118,335.43/x
  3. Step 3: Cross multiply
    218,937.43x = 302,133.50 × 118,335.43
  4. Step 4: Simplify right side
    218,937.43x = 35,753,097,639.91
  5. Step 5: Solve for x
    x = 35,753,097,639.91/218,937.43
  6. Step 6: Final answer
    x = 163,302.81

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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.