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Finding the Fourth Proportional to 219,151, 302,428.64 and 118,549

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Solution

The fourth proportional to 219,151, 302,428.64 and 118,549 is: 163,597.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,151 : 302,428.64 = 118,549 : x
  2. Step 2: Convert to fraction form
    219,151/302,428.64 = 118,549/x
  3. Step 3: Cross multiply
    219,151x = 302,428.64 × 118,549
  4. Step 4: Simplify right side
    219,151x = 35,852,612,843.36
  5. Step 5: Solve for x
    x = 35,852,612,843.36/219,151
  6. Step 6: Final answer
    x = 163,597.76

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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.