Home / 266,870.10-400,531.95-109,211.70

Finding the Fourth Proportional to 266,870.10, 400,531.95 and 109,211.70

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Solution

The fourth proportional to 266,870.10, 400,531.95 and 109,211.70 is: 163,910.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,870.10 : 400,531.95 = 109,211.70 : x
  2. Step 2: Convert to fraction form
    266,870.10/400,531.95 = 109,211.70/x
  3. Step 3: Cross multiply
    266,870.10x = 400,531.95 × 109,211.70
  4. Step 4: Simplify right side
    266,870.10x = 43,742,775,163.82
  5. Step 5: Solve for x
    x = 43,742,775,163.82/266,870.10
  6. Step 6: Final answer
    x = 163,910.36

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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.