Home / 211,869.64-317,534.17-99,301.51

Finding the Fourth Proportional to 211,869.64, 317,534.17 and 99,301.51

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Solution

The fourth proportional to 211,869.64, 317,534.17 and 99,301.51 is: 148,825.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,869.64 : 317,534.17 = 99,301.51 : x
  2. Step 2: Convert to fraction form
    211,869.64/317,534.17 = 99,301.51/x
  3. Step 3: Cross multiply
    211,869.64x = 317,534.17 × 99,301.51
  4. Step 4: Simplify right side
    211,869.64x = 31,531,622,557.60
  5. Step 5: Solve for x
    x = 31,531,622,557.60/211,869.64
  6. Step 6: Final answer
    x = 148,825.58

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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.