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Finding the Fourth Proportional to 287,833.32, 397,211.58 and 158,776.34

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Solution

The fourth proportional to 287,833.32, 397,211.58 and 158,776.34 is: 219,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,833.32 : 397,211.58 = 158,776.34 : x
  2. Step 2: Convert to fraction form
    287,833.32/397,211.58 = 158,776.34/x
  3. Step 3: Cross multiply
    287,833.32x = 397,211.58 × 158,776.34
  4. Step 4: Simplify right side
    287,833.32x = 63,067,798,891.96
  5. Step 5: Solve for x
    x = 63,067,798,891.96/287,833.32
  6. Step 6: Final answer
    x = 219,112.22

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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.