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Finding the Fourth Proportional to 218,973.66, 302,184.08 and 118,371.66

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Solution

The fourth proportional to 218,973.66, 302,184.08 and 118,371.66 is: 163,353.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,973.66 : 302,184.08 = 118,371.66 : x
  2. Step 2: Convert to fraction form
    218,973.66/302,184.08 = 118,371.66/x
  3. Step 3: Cross multiply
    218,973.66x = 302,184.08 × 118,371.66
  4. Step 4: Simplify right side
    218,973.66x = 35,770,031,175.17
  5. Step 5: Solve for x
    x = 35,770,031,175.17/218,973.66
  6. Step 6: Final answer
    x = 163,353.12

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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.