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Finding the Fourth Proportional to 218,952.12, 302,153.88 and 118,350.12

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Solution

The fourth proportional to 218,952.12, 302,153.88 and 118,350.12 is: 163,323.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,952.12 : 302,153.88 = 118,350.12 : x
  2. Step 2: Convert to fraction form
    218,952.12/302,153.88 = 118,350.12/x
  3. Step 3: Cross multiply
    218,952.12x = 302,153.88 × 118,350.12
  4. Step 4: Simplify right side
    218,952.12x = 35,759,947,956.47
  5. Step 5: Solve for x
    x = 35,759,947,956.47/218,952.12
  6. Step 6: Final answer
    x = 163,323.14

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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.