Home / 317,355.30-437,835.39-208,518.26

Finding the Fourth Proportional to 317,355.30, 437,835.39 and 208,518.26

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Solution

The fourth proportional to 317,355.30, 437,835.39 and 208,518.26 is: 287,679.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,355.30 : 437,835.39 = 208,518.26 : x
  2. Step 2: Convert to fraction form
    317,355.30/437,835.39 = 208,518.26/x
  3. Step 3: Cross multiply
    317,355.30x = 437,835.39 × 208,518.26
  4. Step 4: Simplify right side
    317,355.30x = 91,296,673,689.22
  5. Step 5: Solve for x
    x = 91,296,673,689.22/317,355.30
  6. Step 6: Final answer
    x = 287,679.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.