Home / 208,207.20-312,264-95,779.47

Finding the Fourth Proportional to 208,207.20, 312,264 and 95,779.47

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Solution

The fourth proportional to 208,207.20, 312,264 and 95,779.47 is: 143,647.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,207.20 : 312,264 = 95,779.47 : x
  2. Step 2: Convert to fraction form
    208,207.20/312,264 = 95,779.47/x
  3. Step 3: Cross multiply
    208,207.20x = 312,264 × 95,779.47
  4. Step 4: Simplify right side
    208,207.20x = 29,908,480,420.08
  5. Step 5: Solve for x
    x = 29,908,480,420.08/208,207.20
  6. Step 6: Final answer
    x = 143,647.68

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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.