Home / 279,610.65-385,848.95-158,736.07

Finding the Fourth Proportional to 279,610.65, 385,848.95 and 158,736.07

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Solution

The fourth proportional to 279,610.65, 385,848.95 and 158,736.07 is: 219,047.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,610.65 : 385,848.95 = 158,736.07 : x
  2. Step 2: Convert to fraction form
    279,610.65/385,848.95 = 158,736.07/x
  3. Step 3: Cross multiply
    279,610.65x = 385,848.95 × 158,736.07
  4. Step 4: Simplify right side
    279,610.65x = 61,248,145,936.63
  5. Step 5: Solve for x
    x = 61,248,145,936.63/279,610.65
  6. Step 6: Final answer
    x = 219,047.97

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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.