Home / 211,530.81-317,318.10-71,300.37

Finding the Fourth Proportional to 211,530.81, 317,318.10 and 71,300.37

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Solution

The fourth proportional to 211,530.81, 317,318.10 and 71,300.37 is: 106,957.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,530.81 : 317,318.10 = 71,300.37 : x
  2. Step 2: Convert to fraction form
    211,530.81/317,318.10 = 71,300.37/x
  3. Step 3: Cross multiply
    211,530.81x = 317,318.10 × 71,300.37
  4. Step 4: Simplify right side
    211,530.81x = 22,624,897,937.70
  5. Step 5: Solve for x
    x = 22,624,897,937.70/211,530.81
  6. Step 6: Final answer
    x = 106,957.93

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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.