Home / 430,236.90-645,263.10-177,451.83

Finding the Fourth Proportional to 430,236.90, 645,263.10 and 177,451.83

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Solution

The fourth proportional to 430,236.90, 645,263.10 and 177,451.83 is: 266,139.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,236.90 : 645,263.10 = 177,451.83 : x
  2. Step 2: Convert to fraction form
    430,236.90/645,263.10 = 177,451.83/x
  3. Step 3: Cross multiply
    430,236.90x = 645,263.10 × 177,451.83
  4. Step 4: Simplify right side
    430,236.90x = 114,503,117,926.47
  5. Step 5: Solve for x
    x = 114,503,117,926.47/430,236.90
  6. Step 6: Final answer
    x = 266,139.70

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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.