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Finding the Fourth Proportional to 272,211.84, 408,316.39 and 69,807.04

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Solution

The fourth proportional to 272,211.84, 408,316.39 and 69,807.04 is: 104,710.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,211.84 : 408,316.39 = 69,807.04 : x
  2. Step 2: Convert to fraction form
    272,211.84/408,316.39 = 69,807.04/x
  3. Step 3: Cross multiply
    272,211.84x = 408,316.39 × 69,807.04
  4. Step 4: Simplify right side
    272,211.84x = 28,503,356,178.77
  5. Step 5: Solve for x
    x = 28,503,356,178.77/272,211.84
  6. Step 6: Final answer
    x = 104,710.20

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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.