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Finding the Fourth Proportional to 180,885, 249,621.30 and 101,397

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Solution

The fourth proportional to 180,885, 249,621.30 and 101,397 is: 139,927.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,885 : 249,621.30 = 101,397 : x
  2. Step 2: Convert to fraction form
    180,885/249,621.30 = 101,397/x
  3. Step 3: Cross multiply
    180,885x = 249,621.30 × 101,397
  4. Step 4: Simplify right side
    180,885x = 25,310,850,956.10
  5. Step 5: Solve for x
    x = 25,310,850,956.10/180,885
  6. Step 6: Final answer
    x = 139,927.86

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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.