Home / 211,552.47-317,297.43-69,412.77

Finding the Fourth Proportional to 211,552.47, 317,297.43 and 69,412.77

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Solution

The fourth proportional to 211,552.47, 317,297.43 and 69,412.77 is: 104,108.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,552.47 : 317,297.43 = 69,412.77 : x
  2. Step 2: Convert to fraction form
    211,552.47/317,297.43 = 69,412.77/x
  3. Step 3: Cross multiply
    211,552.47x = 317,297.43 × 69,412.77
  4. Step 4: Simplify right side
    211,552.47x = 22,024,493,530.18
  5. Step 5: Solve for x
    x = 22,024,493,530.18/211,552.47
  6. Step 6: Final answer
    x = 104,108.89

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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.