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Finding the Fourth Proportional to 219,368.12, 302,729.30 and 118,766.12

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Solution

The fourth proportional to 219,368.12, 302,729.30 and 118,766.12 is: 163,897.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,368.12 : 302,729.30 = 118,766.12 : x
  2. Step 2: Convert to fraction form
    219,368.12/302,729.30 = 118,766.12/x
  3. Step 3: Cross multiply
    219,368.12x = 302,729.30 × 118,766.12
  4. Step 4: Simplify right side
    219,368.12x = 35,953,984,371.32
  5. Step 5: Solve for x
    x = 35,953,984,371.32/219,368.12
  6. Step 6: Final answer
    x = 163,897.95

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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.