Home / 211,427.15-317,138.90-53,653.32

Finding the Fourth Proportional to 211,427.15, 317,138.90 and 53,653.32

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Solution

The fourth proportional to 211,427.15, 317,138.90 and 53,653.32 is: 80,479.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,427.15 : 317,138.90 = 53,653.32 : x
  2. Step 2: Convert to fraction form
    211,427.15/317,138.90 = 53,653.32/x
  3. Step 3: Cross multiply
    211,427.15x = 317,138.90 × 53,653.32
  4. Step 4: Simplify right side
    211,427.15x = 17,015,554,617.88
  5. Step 5: Solve for x
    x = 17,015,554,617.88/211,427.15
  6. Step 6: Final answer
    x = 80,479.52

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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.