Home / 279,985.19-386,369.93-159,124.37

Finding the Fourth Proportional to 279,985.19, 386,369.93 and 159,124.37

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Solution

The fourth proportional to 279,985.19, 386,369.93 and 159,124.37 is: 219,586.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,985.19 : 386,369.93 = 159,124.37 : x
  2. Step 2: Convert to fraction form
    279,985.19/386,369.93 = 159,124.37/x
  3. Step 3: Cross multiply
    279,985.19x = 386,369.93 × 159,124.37
  4. Step 4: Simplify right side
    279,985.19x = 61,480,870,164.16
  5. Step 5: Solve for x
    x = 61,480,870,164.16/279,985.19
  6. Step 6: Final answer
    x = 219,586.15

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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.