Home / 211,977.87-317,274.53-155,803.11

Finding the Fourth Proportional to 211,977.87, 317,274.53 and 155,803.11

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Solution

The fourth proportional to 211,977.87, 317,274.53 and 155,803.11 is: 233,195.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,977.87 : 317,274.53 = 155,803.11 : x
  2. Step 2: Convert to fraction form
    211,977.87/317,274.53 = 155,803.11/x
  3. Step 3: Cross multiply
    211,977.87x = 317,274.53 × 155,803.11
  4. Step 4: Simplify right side
    211,977.87x = 49,432,357,718.77
  5. Step 5: Solve for x
    x = 49,432,357,718.77/211,977.87
  6. Step 6: Final answer
    x = 233,195.84

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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.