Home / 212,002.06-317,478.21-155,708.68

Finding the Fourth Proportional to 212,002.06, 317,478.21 and 155,708.68

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Solution

The fourth proportional to 212,002.06, 317,478.21 and 155,708.68 is: 233,177.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,002.06 : 317,478.21 = 155,708.68 : x
  2. Step 2: Convert to fraction form
    212,002.06/317,478.21 = 155,708.68/x
  3. Step 3: Cross multiply
    212,002.06x = 317,478.21 × 155,708.68
  4. Step 4: Simplify right side
    212,002.06x = 49,434,113,007.86
  5. Step 5: Solve for x
    x = 49,434,113,007.86/212,002.06
  6. Step 6: Final answer
    x = 233,177.51

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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.