Home / 317,306.08-476,083.73-139,688.47

Finding the Fourth Proportional to 317,306.08, 476,083.73 and 139,688.47

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Solution

The fourth proportional to 317,306.08, 476,083.73 and 139,688.47 is: 209,587.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,306.08 : 476,083.73 = 139,688.47 : x
  2. Step 2: Convert to fraction form
    317,306.08/476,083.73 = 139,688.47/x
  3. Step 3: Cross multiply
    317,306.08x = 476,083.73 × 139,688.47
  4. Step 4: Simplify right side
    317,306.08x = 66,503,407,137.15
  5. Step 5: Solve for x
    x = 66,503,407,137.15/317,306.08
  6. Step 6: Final answer
    x = 209,587.56

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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.