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Finding the Fourth Proportional to 431,865.90, 595,977 and 238,273.60

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Solution

The fourth proportional to 431,865.90, 595,977 and 238,273.60 is: 328,818.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,865.90 : 595,977 = 238,273.60 : x
  2. Step 2: Convert to fraction form
    431,865.90/595,977 = 238,273.60/x
  3. Step 3: Cross multiply
    431,865.90x = 595,977 × 238,273.60
  4. Step 4: Simplify right side
    431,865.90x = 142,005,585,307.20
  5. Step 5: Solve for x
    x = 142,005,585,307.20/431,865.90
  6. Step 6: Final answer
    x = 328,818.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.