Home / 430,255.53-645,162.98-252,815.85

Finding the Fourth Proportional to 430,255.53, 645,162.98 and 252,815.85

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Solution

The fourth proportional to 430,255.53, 645,162.98 and 252,815.85 is: 379,094.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,255.53 : 645,162.98 = 252,815.85 : x
  2. Step 2: Convert to fraction form
    430,255.53/645,162.98 = 252,815.85/x
  3. Step 3: Cross multiply
    430,255.53x = 645,162.98 × 252,815.85
  4. Step 4: Simplify right side
    430,255.53x = 163,107,425,913.15
  5. Step 5: Solve for x
    x = 163,107,425,913.15/430,255.53
  6. Step 6: Final answer
    x = 379,094.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.