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Finding the Fourth Proportional to 245,307.83, 368,104.48 and 103,142.79

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Solution

The fourth proportional to 245,307.83, 368,104.48 and 103,142.79 is: 154,774.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,307.83 : 368,104.48 = 103,142.79 : x
  2. Step 2: Convert to fraction form
    245,307.83/368,104.48 = 103,142.79/x
  3. Step 3: Cross multiply
    245,307.83x = 368,104.48 × 103,142.79
  4. Step 4: Simplify right side
    245,307.83x = 37,967,322,820.84
  5. Step 5: Solve for x
    x = 37,967,322,820.84/245,307.83
  6. Step 6: Final answer
    x = 154,774.20

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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.