Home / 397,860.96-596,897.52-145,164.72

Finding the Fourth Proportional to 397,860.96, 596,897.52 and 145,164.72

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Solution

The fourth proportional to 397,860.96, 596,897.52 and 145,164.72 is: 217,785.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,860.96 : 596,897.52 = 145,164.72 : x
  2. Step 2: Convert to fraction form
    397,860.96/596,897.52 = 145,164.72/x
  3. Step 3: Cross multiply
    397,860.96x = 596,897.52 × 145,164.72
  4. Step 4: Simplify right side
    397,860.96x = 86,648,461,359.49
  5. Step 5: Solve for x
    x = 86,648,461,359.49/397,860.96
  6. Step 6: Final answer
    x = 217,785.78

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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.