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Finding the Fourth Proportional to 288,070.26, 397,497.15 and 160,721.10

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Solution

The fourth proportional to 288,070.26, 397,497.15 and 160,721.10 is: 221,772.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,070.26 : 397,497.15 = 160,721.10 : x
  2. Step 2: Convert to fraction form
    288,070.26/397,497.15 = 160,721.10/x
  3. Step 3: Cross multiply
    288,070.26x = 397,497.15 × 160,721.10
  4. Step 4: Simplify right side
    288,070.26x = 63,886,179,194.87
  5. Step 5: Solve for x
    x = 63,886,179,194.87/288,070.26
  6. Step 6: Final answer
    x = 221,772.91

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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.