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Finding the Fourth Proportional to 245,397.94, 368,101.53 and 76,914.56

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Solution

The fourth proportional to 245,397.94, 368,101.53 and 76,914.56 is: 115,373.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,397.94 : 368,101.53 = 76,914.56 : x
  2. Step 2: Convert to fraction form
    245,397.94/368,101.53 = 76,914.56/x
  3. Step 3: Cross multiply
    245,397.94x = 368,101.53 × 76,914.56
  4. Step 4: Simplify right side
    245,397.94x = 28,312,368,135.53
  5. Step 5: Solve for x
    x = 28,312,368,135.53/245,397.94
  6. Step 6: Final answer
    x = 115,373.29

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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.