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Finding the Fourth Proportional to 180,617.67, 249,016.05 and 155,394.95

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Solution

The fourth proportional to 180,617.67, 249,016.05 and 155,394.95 is: 214,241.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,617.67 : 249,016.05 = 155,394.95 : x
  2. Step 2: Convert to fraction form
    180,617.67/249,016.05 = 155,394.95/x
  3. Step 3: Cross multiply
    180,617.67x = 249,016.05 × 155,394.95
  4. Step 4: Simplify right side
    180,617.67x = 38,695,835,393.87
  5. Step 5: Solve for x
    x = 38,695,835,393.87/180,617.67
  6. Step 6: Final answer
    x = 214,241.69

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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.