Home / 211,709.41-317,497.20-69,531.25

Finding the Fourth Proportional to 211,709.41, 317,497.20 and 69,531.25

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Solution

The fourth proportional to 211,709.41, 317,497.20 and 69,531.25 is: 104,274.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,709.41 : 317,497.20 = 69,531.25 : x
  2. Step 2: Convert to fraction form
    211,709.41/317,497.20 = 69,531.25/x
  3. Step 3: Cross multiply
    211,709.41x = 317,497.20 × 69,531.25
  4. Step 4: Simplify right side
    211,709.41x = 22,075,977,187.50
  5. Step 5: Solve for x
    x = 22,075,977,187.50/211,709.41
  6. Step 6: Final answer
    x = 104,274.90

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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.