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Finding the Fourth Proportional to 180,874.35, 249,585.98 and 100,281.51

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Solution

The fourth proportional to 180,874.35, 249,585.98 and 100,281.51 is: 138,377.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,874.35 : 249,585.98 = 100,281.51 : x
  2. Step 2: Convert to fraction form
    180,874.35/249,585.98 = 100,281.51/x
  3. Step 3: Cross multiply
    180,874.35x = 249,585.98 × 100,281.51
  4. Step 4: Simplify right side
    180,874.35x = 25,028,858,447.82
  5. Step 5: Solve for x
    x = 25,028,858,447.82/180,874.35
  6. Step 6: Final answer
    x = 138,377.05

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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.