Home / 211,767.40-317,583.74-69,579.90

Finding the Fourth Proportional to 211,767.40, 317,583.74 and 69,579.90

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Solution

The fourth proportional to 211,767.40, 317,583.74 and 69,579.90 is: 104,347.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,767.40 : 317,583.74 = 69,579.90 : x
  2. Step 2: Convert to fraction form
    211,767.40/317,583.74 = 69,579.90/x
  3. Step 3: Cross multiply
    211,767.40x = 317,583.74 × 69,579.90
  4. Step 4: Simplify right side
    211,767.40x = 22,097,444,870.83
  5. Step 5: Solve for x
    x = 22,097,444,870.83/211,767.40
  6. Step 6: Final answer
    x = 104,347.72

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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.