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Finding the Fourth Proportional to 288,374.88, 397,738.08 and 248,155.68

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Solution

The fourth proportional to 288,374.88, 397,738.08 and 248,155.68 is: 342,266.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,374.88 : 397,738.08 = 248,155.68 : x
  2. Step 2: Convert to fraction form
    288,374.88/397,738.08 = 248,155.68/x
  3. Step 3: Cross multiply
    288,374.88x = 397,738.08 × 248,155.68
  4. Step 4: Simplify right side
    288,374.88x = 98,700,963,704.29
  5. Step 5: Solve for x
    x = 98,700,963,704.29/288,374.88
  6. Step 6: Final answer
    x = 342,266.16

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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.