Home / 287,834.23-397,201.89-158,772.39

Finding the Fourth Proportional to 287,834.23, 397,201.89 and 158,772.39

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Solution

The fourth proportional to 287,834.23, 397,201.89 and 158,772.39 is: 219,100.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,834.23 : 397,201.89 = 158,772.39 : x
  2. Step 2: Convert to fraction form
    287,834.23/397,201.89 = 158,772.39/x
  3. Step 3: Cross multiply
    287,834.23x = 397,201.89 × 158,772.39
  4. Step 4: Simplify right side
    287,834.23x = 63,064,693,387.82
  5. Step 5: Solve for x
    x = 63,064,693,387.82/287,834.23
  6. Step 6: Final answer
    x = 219,100.74

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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.