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Finding the Fourth Proportional to 287,777.52, 397,383.71 and 180,531.90

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Solution

The fourth proportional to 287,777.52, 397,383.71 and 180,531.90 is: 249,291.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,777.52 : 397,383.71 = 180,531.90 : x
  2. Step 2: Convert to fraction form
    287,777.52/397,383.71 = 180,531.90/x
  3. Step 3: Cross multiply
    287,777.52x = 397,383.71 × 180,531.90
  4. Step 4: Simplify right side
    287,777.52x = 71,740,435,292.69
  5. Step 5: Solve for x
    x = 71,740,435,292.69/287,777.52
  6. Step 6: Final answer
    x = 249,291.31

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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.