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Finding the Fourth Proportional to 279,509.04, 385,725.24 and 160,254

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Solution

The fourth proportional to 279,509.04, 385,725.24 and 160,254 is: 221,152.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,509.04 : 385,725.24 = 160,254 : x
  2. Step 2: Convert to fraction form
    279,509.04/385,725.24 = 160,254/x
  3. Step 3: Cross multiply
    279,509.04x = 385,725.24 × 160,254
  4. Step 4: Simplify right side
    279,509.04x = 61,814,012,610.96
  5. Step 5: Solve for x
    x = 61,814,012,610.96/279,509.04
  6. Step 6: Final answer
    x = 221,152.11

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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.