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Finding the Fourth Proportional to 145,417.70, 218,140.95 and 50,633.30

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Solution

The fourth proportional to 145,417.70, 218,140.95 and 50,633.30 is: 75,954.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,417.70 : 218,140.95 = 50,633.30 : x
  2. Step 2: Convert to fraction form
    145,417.70/218,140.95 = 50,633.30/x
  3. Step 3: Cross multiply
    145,417.70x = 218,140.95 × 50,633.30
  4. Step 4: Simplify right side
    145,417.70x = 11,045,196,163.64
  5. Step 5: Solve for x
    x = 11,045,196,163.64/145,417.70
  6. Step 6: Final answer
    x = 75,954.96

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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.