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Finding the Fourth Proportional to 315,273.02, 435,089.84 and 179,330.90

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Solution

The fourth proportional to 315,273.02, 435,089.84 and 179,330.90 is: 247,484.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,273.02 : 435,089.84 = 179,330.90 : x
  2. Step 2: Convert to fraction form
    315,273.02/435,089.84 = 179,330.90/x
  3. Step 3: Cross multiply
    315,273.02x = 435,089.84 × 179,330.90
  4. Step 4: Simplify right side
    315,273.02x = 78,025,049,515.95
  5. Step 5: Solve for x
    x = 78,025,049,515.95/315,273.02
  6. Step 6: Final answer
    x = 247,484.07

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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.