Home / 317,401.10-476,225.58-139,783.28

Finding the Fourth Proportional to 317,401.10, 476,225.58 and 139,783.28

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Solution

The fourth proportional to 317,401.10, 476,225.58 and 139,783.28 is: 209,729.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,401.10 : 476,225.58 = 139,783.28 : x
  2. Step 2: Convert to fraction form
    317,401.10/476,225.58 = 139,783.28/x
  3. Step 3: Cross multiply
    317,401.10x = 476,225.58 × 139,783.28
  4. Step 4: Simplify right side
    317,401.10x = 66,568,373,592.30
  5. Step 5: Solve for x
    x = 66,568,373,592.30/317,401.10
  6. Step 6: Final answer
    x = 209,729.50

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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.