Home / 397,237.02-595,876.05-130,986.78

Finding the Fourth Proportional to 397,237.02, 595,876.05 and 130,986.78

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Solution

The fourth proportional to 397,237.02, 595,876.05 and 130,986.78 is: 196,486.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,237.02 : 595,876.05 = 130,986.78 : x
  2. Step 2: Convert to fraction form
    397,237.02/595,876.05 = 130,986.78/x
  3. Step 3: Cross multiply
    397,237.02x = 595,876.05 × 130,986.78
  4. Step 4: Simplify right side
    397,237.02x = 78,051,885,068.62
  5. Step 5: Solve for x
    x = 78,051,885,068.62/397,237.02
  6. Step 6: Final answer
    x = 196,486.94

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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.