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Finding the Fourth Proportional to 315,461.46, 435,375.01 and 179,528.47

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Solution

The fourth proportional to 315,461.46, 435,375.01 and 179,528.47 is: 247,771.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,461.46 : 435,375.01 = 179,528.47 : x
  2. Step 2: Convert to fraction form
    315,461.46/435,375.01 = 179,528.47/x
  3. Step 3: Cross multiply
    315,461.46x = 435,375.01 × 179,528.47
  4. Step 4: Simplify right side
    315,461.46x = 78,162,209,421.53
  5. Step 5: Solve for x
    x = 78,162,209,421.53/315,461.46
  6. Step 6: Final answer
    x = 247,771.03

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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.