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Finding the Fourth Proportional to 245,205.78, 365,662.85 and 242,963.64

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Solution

The fourth proportional to 245,205.78, 365,662.85 and 242,963.64 is: 362,319.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,205.78 : 365,662.85 = 242,963.64 : x
  2. Step 2: Convert to fraction form
    245,205.78/365,662.85 = 242,963.64/x
  3. Step 3: Cross multiply
    245,205.78x = 365,662.85 × 242,963.64
  4. Step 4: Simplify right side
    245,205.78x = 88,842,775,833.96
  5. Step 5: Solve for x
    x = 88,842,775,833.96/245,205.78
  6. Step 6: Final answer
    x = 362,319.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.