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Finding the Fourth Proportional to 208,179, 312,277.14 and 60,435

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Solution

The fourth proportional to 208,179, 312,277.14 and 60,435 is: 90,655.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,179 : 312,277.14 = 60,435 : x
  2. Step 2: Convert to fraction form
    208,179/312,277.14 = 60,435/x
  3. Step 3: Cross multiply
    208,179x = 312,277.14 × 60,435
  4. Step 4: Simplify right side
    208,179x = 18,872,468,955.90
  5. Step 5: Solve for x
    x = 18,872,468,955.90/208,179
  6. Step 6: Final answer
    x = 90,655.01

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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.