Home / 309,885.72-463,831.97-159,921.71

Finding the Fourth Proportional to 309,885.72, 463,831.97 and 159,921.71

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Solution

The fourth proportional to 309,885.72, 463,831.97 and 159,921.71 is: 239,368.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,885.72 : 463,831.97 = 159,921.71 : x
  2. Step 2: Convert to fraction form
    309,885.72/463,831.97 = 159,921.71/x
  3. Step 3: Cross multiply
    309,885.72x = 463,831.97 × 159,921.71
  4. Step 4: Simplify right side
    309,885.72x = 74,176,798,676.30
  5. Step 5: Solve for x
    x = 74,176,798,676.30/309,885.72
  6. Step 6: Final answer
    x = 239,368.24

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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.