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Finding the Fourth Proportional to 430,684.02, 645,315.12 and 250,262.96

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Solution

The fourth proportional to 430,684.02, 645,315.12 and 250,262.96 is: 374,981.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,684.02 : 645,315.12 = 250,262.96 : x
  2. Step 2: Convert to fraction form
    430,684.02/645,315.12 = 250,262.96/x
  3. Step 3: Cross multiply
    430,684.02x = 645,315.12 × 250,262.96
  4. Step 4: Simplify right side
    430,684.02x = 161,498,468,837.38
  5. Step 5: Solve for x
    x = 161,498,468,837.38/430,684.02
  6. Step 6: Final answer
    x = 374,981.34

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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.