Home / 409,974.57-615,151.67-157,170.51

Finding the Fourth Proportional to 409,974.57, 615,151.67 and 157,170.51

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Solution

The fourth proportional to 409,974.57, 615,151.67 and 157,170.51 is: 235,828.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,974.57 : 615,151.67 = 157,170.51 : x
  2. Step 2: Convert to fraction form
    409,974.57/615,151.67 = 157,170.51/x
  3. Step 3: Cross multiply
    409,974.57x = 615,151.67 × 157,170.51
  4. Step 4: Simplify right side
    409,974.57x = 96,683,700,915.40
  5. Step 5: Solve for x
    x = 96,683,700,915.40/409,974.57
  6. Step 6: Final answer
    x = 235,828.53

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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.