Home / 340,356.16-510,521.60-137,945.28

Finding the Fourth Proportional to 340,356.16, 510,521.60 and 137,945.28

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Solution

The fourth proportional to 340,356.16, 510,521.60 and 137,945.28 is: 206,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,356.16 : 510,521.60 = 137,945.28 : x
  2. Step 2: Convert to fraction form
    340,356.16/510,521.60 = 137,945.28/x
  3. Step 3: Cross multiply
    340,356.16x = 510,521.60 × 137,945.28
  4. Step 4: Simplify right side
    340,356.16x = 70,424,045,058.05
  5. Step 5: Solve for x
    x = 70,424,045,058.05/340,356.16
  6. Step 6: Final answer
    x = 206,912.80

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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.