Home / 279,985.06-386,369.76-159,124.24

Finding the Fourth Proportional to 279,985.06, 386,369.76 and 159,124.24

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Solution

The fourth proportional to 279,985.06, 386,369.76 and 159,124.24 is: 219,585.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,985.06 : 386,369.76 = 159,124.24 : x
  2. Step 2: Convert to fraction form
    279,985.06/386,369.76 = 159,124.24/x
  3. Step 3: Cross multiply
    279,985.06x = 386,369.76 × 159,124.24
  4. Step 4: Simplify right side
    279,985.06x = 61,480,794,418.98
  5. Step 5: Solve for x
    x = 61,480,794,418.98/279,985.06
  6. Step 6: Final answer
    x = 219,585.98

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1.5x scale

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.