Home / 211,520.35-317,562.10-122,837.50

Finding the Fourth Proportional to 211,520.35, 317,562.10 and 122,837.50

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Solution

The fourth proportional to 211,520.35, 317,562.10 and 122,837.50 is: 184,419.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,520.35 : 317,562.10 = 122,837.50 : x
  2. Step 2: Convert to fraction form
    211,520.35/317,562.10 = 122,837.50/x
  3. Step 3: Cross multiply
    211,520.35x = 317,562.10 × 122,837.50
  4. Step 4: Simplify right side
    211,520.35x = 39,008,534,458.75
  5. Step 5: Solve for x
    x = 39,008,534,458.75/211,520.35
  6. Step 6: Final answer
    x = 184,419.77

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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.