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Finding the Fourth Proportional to 245,468.53, 368,202.61 and 77,001.86

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Solution

The fourth proportional to 245,468.53, 368,202.61 and 77,001.86 is: 115,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,468.53 : 368,202.61 = 77,001.86 : x
  2. Step 2: Convert to fraction form
    245,468.53/368,202.61 = 77,001.86/x
  3. Step 3: Cross multiply
    245,468.53x = 368,202.61 × 77,001.86
  4. Step 4: Simplify right side
    245,468.53x = 28,352,286,410.48
  5. Step 5: Solve for x
    x = 28,352,286,410.48/245,468.53
  6. Step 6: Final answer
    x = 115,502.74

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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.