Home / 211,344.75-317,058.57-78,226.14

Finding the Fourth Proportional to 211,344.75, 317,058.57 and 78,226.14

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Solution

The fourth proportional to 211,344.75, 317,058.57 and 78,226.14 is: 117,354.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,344.75 : 317,058.57 = 78,226.14 : x
  2. Step 2: Convert to fraction form
    211,344.75/317,058.57 = 78,226.14/x
  3. Step 3: Cross multiply
    211,344.75x = 317,058.57 × 78,226.14
  4. Step 4: Simplify right side
    211,344.75x = 24,802,268,085.02
  5. Step 5: Solve for x
    x = 24,802,268,085.02/211,344.75
  6. Step 6: Final answer
    x = 117,354.55

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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.