Home / 430,529.85-645,444.86-150,243.93

Finding the Fourth Proportional to 430,529.85, 645,444.86 and 150,243.93

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Solution

The fourth proportional to 430,529.85, 645,444.86 and 150,243.93 is: 225,243.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,529.85 : 645,444.86 = 150,243.93 : x
  2. Step 2: Convert to fraction form
    430,529.85/645,444.86 = 150,243.93/x
  3. Step 3: Cross multiply
    430,529.85x = 645,444.86 × 150,243.93
  4. Step 4: Simplify right side
    430,529.85x = 96,974,171,613.48
  5. Step 5: Solve for x
    x = 96,974,171,613.48/430,529.85
  6. Step 6: Final answer
    x = 225,243.78

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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.