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Finding the Fourth Proportional to 315,576.63, 435,437.13 and 179,602.50

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Solution

The fourth proportional to 315,576.63, 435,437.13 and 179,602.50 is: 247,818.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,576.63 : 435,437.13 = 179,602.50 : x
  2. Step 2: Convert to fraction form
    315,576.63/435,437.13 = 179,602.50/x
  3. Step 3: Cross multiply
    315,576.63x = 435,437.13 × 179,602.50
  4. Step 4: Simplify right side
    315,576.63x = 78,205,597,140.83
  5. Step 5: Solve for x
    x = 78,205,597,140.83/315,576.63
  6. Step 6: Final answer
    x = 247,818.09

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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.