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Finding the Fourth Proportional to 180,884.77, 249,603.24 and 100,310.89

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Solution

The fourth proportional to 180,884.77, 249,603.24 and 100,310.89 is: 138,419.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,884.77 : 249,603.24 = 100,310.89 : x
  2. Step 2: Convert to fraction form
    180,884.77/249,603.24 = 100,310.89/x
  3. Step 3: Cross multiply
    180,884.77x = 249,603.24 × 100,310.89
  4. Step 4: Simplify right side
    180,884.77x = 25,037,923,151.28
  5. Step 5: Solve for x
    x = 25,037,923,151.28/180,884.77
  6. Step 6: Final answer
    x = 138,419.19

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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.