Home / 211,518.80-317,278.20-161,752.40

Finding the Fourth Proportional to 211,518.80, 317,278.20 and 161,752.40

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Solution

The fourth proportional to 211,518.80, 317,278.20 and 161,752.40 is: 242,628.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,518.80 : 317,278.20 = 161,752.40 : x
  2. Step 2: Convert to fraction form
    211,518.80/317,278.20 = 161,752.40/x
  3. Step 3: Cross multiply
    211,518.80x = 317,278.20 × 161,752.40
  4. Step 4: Simplify right side
    211,518.80x = 51,320,510,317.68
  5. Step 5: Solve for x
    x = 51,320,510,317.68/211,518.80
  6. Step 6: Final answer
    x = 242,628.60

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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.