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Finding the Fourth Proportional to 245,205, 365,661.72 and 242,962.88

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Solution

The fourth proportional to 245,205, 365,661.72 and 242,962.88 is: 362,318.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,205 : 365,661.72 = 242,962.88 : x
  2. Step 2: Convert to fraction form
    245,205/365,661.72 = 242,962.88/x
  3. Step 3: Cross multiply
    245,205x = 365,661.72 × 242,962.88
  4. Step 4: Simplify right side
    245,205x = 88,842,222,768.65
  5. Step 5: Solve for x
    x = 88,842,222,768.65/245,205
  6. Step 6: Final answer
    x = 362,318.15

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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.