Home / 430,151.07-645,227.65-130,633.93

Finding the Fourth Proportional to 430,151.07, 645,227.65 and 130,633.93

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Solution

The fourth proportional to 430,151.07, 645,227.65 and 130,633.93 is: 195,951.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,151.07 : 645,227.65 = 130,633.93 : x
  2. Step 2: Convert to fraction form
    430,151.07/645,227.65 = 130,633.93/x
  3. Step 3: Cross multiply
    430,151.07x = 645,227.65 × 130,633.93
  4. Step 4: Simplify right side
    430,151.07x = 84,288,620,438.03
  5. Step 5: Solve for x
    x = 84,288,620,438.03/430,151.07
  6. Step 6: Final answer
    x = 195,951.20

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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.