Home / 317,307.83-476,086.35-139,690.22

Finding the Fourth Proportional to 317,307.83, 476,086.35 and 139,690.22

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Solution

The fourth proportional to 317,307.83, 476,086.35 and 139,690.22 is: 209,590.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,307.83 : 476,086.35 = 139,690.22 : x
  2. Step 2: Convert to fraction form
    317,307.83/476,086.35 = 139,690.22/x
  3. Step 3: Cross multiply
    317,307.83x = 476,086.35 × 139,690.22
  4. Step 4: Simplify right side
    317,307.83x = 66,504,606,970.50
  5. Step 5: Solve for x
    x = 66,504,606,970.50/317,307.83
  6. Step 6: Final answer
    x = 209,590.19

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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.