Home / 211,558.16-317,347.80-69,390.82

Finding the Fourth Proportional to 211,558.16, 317,347.80 and 69,390.82

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Solution

The fourth proportional to 211,558.16, 317,347.80 and 69,390.82 is: 104,089.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,558.16 : 317,347.80 = 69,390.82 : x
  2. Step 2: Convert to fraction form
    211,558.16/317,347.80 = 69,390.82/x
  3. Step 3: Cross multiply
    211,558.16x = 317,347.80 × 69,390.82
  4. Step 4: Simplify right side
    211,558.16x = 22,021,024,067.20
  5. Step 5: Solve for x
    x = 22,021,024,067.20/211,558.16
  6. Step 6: Final answer
    x = 104,089.69

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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.