Home / 317,307.33-476,085.60-139,689.72

Finding the Fourth Proportional to 317,307.33, 476,085.60 and 139,689.72

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Solution

The fourth proportional to 317,307.33, 476,085.60 and 139,689.72 is: 209,589.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,307.33 : 476,085.60 = 139,689.72 : x
  2. Step 2: Convert to fraction form
    317,307.33/476,085.60 = 139,689.72/x
  3. Step 3: Cross multiply
    317,307.33x = 476,085.60 × 139,689.72
  4. Step 4: Simplify right side
    317,307.33x = 66,504,264,160.03
  5. Step 5: Solve for x
    x = 66,504,264,160.03/317,307.33
  6. Step 6: Final answer
    x = 209,589.44

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1.5x scale

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.