Home / 287,824.61-397,198.35-158,760.19

Finding the Fourth Proportional to 287,824.61, 397,198.35 and 158,760.19

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Solution

The fourth proportional to 287,824.61, 397,198.35 and 158,760.19 is: 219,089.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,824.61 : 397,198.35 = 158,760.19 : x
  2. Step 2: Convert to fraction form
    287,824.61/397,198.35 = 158,760.19/x
  3. Step 3: Cross multiply
    287,824.61x = 397,198.35 × 158,760.19
  4. Step 4: Simplify right side
    287,824.61x = 63,059,285,513.69
  5. Step 5: Solve for x
    x = 63,059,285,513.69/287,824.61
  6. Step 6: Final answer
    x = 219,089.28

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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.