Home / 445,218.65-667,921.53-145,675.89

Finding the Fourth Proportional to 445,218.65, 667,921.53 and 145,675.89

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Solution

The fourth proportional to 445,218.65, 667,921.53 and 145,675.89 is: 218,544.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,218.65 : 667,921.53 = 145,675.89 : x
  2. Step 2: Convert to fraction form
    445,218.65/667,921.53 = 145,675.89/x
  3. Step 3: Cross multiply
    445,218.65x = 667,921.53 × 145,675.89
  4. Step 4: Simplify right side
    445,218.65x = 97,300,063,332.91
  5. Step 5: Solve for x
    x = 97,300,063,332.91/445,218.65
  6. Step 6: Final answer
    x = 218,544.45

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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.