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Finding the Fourth Proportional to 315,401.85, 435,239.35 and 179,423.00

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Solution

The fourth proportional to 315,401.85, 435,239.35 and 179,423.00 is: 247,595.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,401.85 : 435,239.35 = 179,423.00 : x
  2. Step 2: Convert to fraction form
    315,401.85/435,239.35 = 179,423.00/x
  3. Step 3: Cross multiply
    315,401.85x = 435,239.35 × 179,423.00
  4. Step 4: Simplify right side
    315,401.85x = 78,091,949,407.07
  5. Step 5: Solve for x
    x = 78,091,949,407.07/315,401.85
  6. Step 6: Final answer
    x = 247,595.09

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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.