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Finding the Fourth Proportional to 180,858.52, 249,587.75 and 100,289.44

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Solution

The fourth proportional to 180,858.52, 249,587.75 and 100,289.44 is: 138,401.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,858.52 : 249,587.75 = 100,289.44 : x
  2. Step 2: Convert to fraction form
    180,858.52/249,587.75 = 100,289.44/x
  3. Step 3: Cross multiply
    180,858.52x = 249,587.75 × 100,289.44
  4. Step 4: Simplify right side
    180,858.52x = 25,031,013,928.97
  5. Step 5: Solve for x
    x = 25,031,013,928.97/180,858.52
  6. Step 6: Final answer
    x = 138,401.08

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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.