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Finding the Fourth Proportional to 180,894.85, 249,649.84 and 100,348.35

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Solution

The fourth proportional to 180,894.85, 249,649.84 and 100,348.35 is: 138,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,894.85 : 249,649.84 = 100,348.35 : x
  2. Step 2: Convert to fraction form
    180,894.85/249,649.84 = 100,348.35/x
  3. Step 3: Cross multiply
    180,894.85x = 249,649.84 × 100,348.35
  4. Step 4: Simplify right side
    180,894.85x = 25,051,949,521.76
  5. Step 5: Solve for x
    x = 25,051,949,521.76/180,894.85
  6. Step 6: Final answer
    x = 138,489.01

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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.