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Finding the Fourth Proportional to 287,627.50, 396,939.47 and 160,304.01

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Solution

The fourth proportional to 287,627.50, 396,939.47 and 160,304.01 is: 221,227.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,627.50 : 396,939.47 = 160,304.01 : x
  2. Step 2: Convert to fraction form
    287,627.50/396,939.47 = 160,304.01/x
  3. Step 3: Cross multiply
    287,627.50x = 396,939.47 × 160,304.01
  4. Step 4: Simplify right side
    287,627.50x = 63,630,987,600.00
  5. Step 5: Solve for x
    x = 63,630,987,600.00/287,627.50
  6. Step 6: Final answer
    x = 221,227.06

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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.