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Finding the Fourth Proportional to 368,920.08, 552,315.78 and 216,655.74

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Solution

The fourth proportional to 368,920.08, 552,315.78 and 216,655.74 is: 324,358.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,920.08 : 552,315.78 = 216,655.74 : x
  2. Step 2: Convert to fraction form
    368,920.08/552,315.78 = 216,655.74/x
  3. Step 3: Cross multiply
    368,920.08x = 552,315.78 × 216,655.74
  4. Step 4: Simplify right side
    368,920.08x = 119,662,384,029.58
  5. Step 5: Solve for x
    x = 119,662,384,029.58/368,920.08
  6. Step 6: Final answer
    x = 324,358.55

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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.