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Finding the Fourth Proportional to 218,935.34, 302,130.68 and 118,333.34

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Solution

The fourth proportional to 218,935.34, 302,130.68 and 118,333.34 is: 163,299.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,935.34 : 302,130.68 = 118,333.34 : x
  2. Step 2: Convert to fraction form
    218,935.34/302,130.68 = 118,333.34/x
  3. Step 3: Cross multiply
    218,935.34x = 302,130.68 × 118,333.34
  4. Step 4: Simplify right side
    218,935.34x = 35,752,132,480.87
  5. Step 5: Solve for x
    x = 35,752,132,480.87/218,935.34
  6. Step 6: Final answer
    x = 163,299.96

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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.