Home / 211,427.73-316,569.51-154,839.11

Finding the Fourth Proportional to 211,427.73, 316,569.51 and 154,839.11

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Solution

The fourth proportional to 211,427.73, 316,569.51 and 154,839.11 is: 231,839.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,427.73 : 316,569.51 = 154,839.11 : x
  2. Step 2: Convert to fraction form
    211,427.73/316,569.51 = 154,839.11/x
  3. Step 3: Cross multiply
    211,427.73x = 316,569.51 × 154,839.11
  4. Step 4: Simplify right side
    211,427.73x = 49,017,339,598.69
  5. Step 5: Solve for x
    x = 49,017,339,598.69/211,427.73
  6. Step 6: Final answer
    x = 231,839.69

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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.