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Finding the Fourth Proportional to 218,925.80, 302,117.46 and 118,323.80

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Solution

The fourth proportional to 218,925.80, 302,117.46 and 118,323.80 is: 163,286.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,925.80 : 302,117.46 = 118,323.80 : x
  2. Step 2: Convert to fraction form
    218,925.80/302,117.46 = 118,323.80/x
  3. Step 3: Cross multiply
    218,925.80x = 302,117.46 × 118,323.80
  4. Step 4: Simplify right side
    218,925.80x = 35,747,684,402.96
  5. Step 5: Solve for x
    x = 35,747,684,402.96/218,925.80
  6. Step 6: Final answer
    x = 163,286.76

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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.