Home / 287,726.46-397,053.41-158,670.38

Finding the Fourth Proportional to 287,726.46, 397,053.41 and 158,670.38

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Solution

The fourth proportional to 287,726.46, 397,053.41 and 158,670.38 is: 218,960.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,726.46 : 397,053.41 = 158,670.38 : x
  2. Step 2: Convert to fraction form
    287,726.46/397,053.41 = 158,670.38/x
  3. Step 3: Cross multiply
    287,726.46x = 397,053.41 × 158,670.38
  4. Step 4: Simplify right side
    287,726.46x = 63,000,612,666.38
  5. Step 5: Solve for x
    x = 63,000,612,666.38/287,726.46
  6. Step 6: Final answer
    x = 218,960.09

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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.