Home / 211,330.65-317,277.45-122,647.80

Finding the Fourth Proportional to 211,330.65, 317,277.45 and 122,647.80

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Solution

The fourth proportional to 211,330.65, 317,277.45 and 122,647.80 is: 184,135.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,330.65 : 317,277.45 = 122,647.80 : x
  2. Step 2: Convert to fraction form
    211,330.65/317,277.45 = 122,647.80/x
  3. Step 3: Cross multiply
    211,330.65x = 317,277.45 × 122,647.80
  4. Step 4: Simplify right side
    211,330.65x = 38,913,381,232.11
  5. Step 5: Solve for x
    x = 38,913,381,232.11/211,330.65
  6. Step 6: Final answer
    x = 184,135.06

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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.