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Finding the Fourth Proportional to 245,369.36, 368,054.13 and 76,902.76

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Solution

The fourth proportional to 245,369.36, 368,054.13 and 76,902.76 is: 115,354.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,369.36 : 368,054.13 = 76,902.76 : x
  2. Step 2: Convert to fraction form
    245,369.36/368,054.13 = 76,902.76/x
  3. Step 3: Cross multiply
    245,369.36x = 368,054.13 × 76,902.76
  4. Step 4: Simplify right side
    245,369.36x = 28,304,377,121.75
  5. Step 5: Solve for x
    x = 28,304,377,121.75/245,369.36
  6. Step 6: Final answer
    x = 115,354.16

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1.5x scale

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.