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Finding the Fourth Proportional to 180,904.20, 249,649.20 and 100,327.20

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Solution

The fourth proportional to 180,904.20, 249,649.20 and 100,327.20 is: 138,452.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,904.20 : 249,649.20 = 100,327.20 : x
  2. Step 2: Convert to fraction form
    180,904.20/249,649.20 = 100,327.20/x
  3. Step 3: Cross multiply
    180,904.20x = 249,649.20 × 100,327.20
  4. Step 4: Simplify right side
    180,904.20x = 25,046,605,218.24
  5. Step 5: Solve for x
    x = 25,046,605,218.24/180,904.20
  6. Step 6: Final answer
    x = 138,452.31

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1.5x scale

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.