Home / 211,377.64-317,106.52-111,443.36

Finding the Fourth Proportional to 211,377.64, 317,106.52 and 111,443.36

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Solution

The fourth proportional to 211,377.64, 317,106.52 and 111,443.36 is: 167,186.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,377.64 : 317,106.52 = 111,443.36 : x
  2. Step 2: Convert to fraction form
    211,377.64/317,106.52 = 111,443.36/x
  3. Step 3: Cross multiply
    211,377.64x = 317,106.52 × 111,443.36
  4. Step 4: Simplify right side
    211,377.64x = 35,339,416,066.71
  5. Step 5: Solve for x
    x = 35,339,416,066.71/211,377.64
  6. Step 6: Final answer
    x = 167,186.16

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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.