Home / 279,582.29-385,809.85-158,707.42

Finding the Fourth Proportional to 279,582.29, 385,809.85 and 158,707.42

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Solution

The fourth proportional to 279,582.29, 385,809.85 and 158,707.42 is: 219,008.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,582.29 : 385,809.85 = 158,707.42 : x
  2. Step 2: Convert to fraction form
    279,582.29/385,809.85 = 158,707.42/x
  3. Step 3: Cross multiply
    279,582.29x = 385,809.85 × 158,707.42
  4. Step 4: Simplify right side
    279,582.29x = 61,230,885,904.09
  5. Step 5: Solve for x
    x = 61,230,885,904.09/279,582.29
  6. Step 6: Final answer
    x = 219,008.46

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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.