Home / 345,109.37-476,177.72-217,711.13

Finding the Fourth Proportional to 345,109.37, 476,177.72 and 217,711.13

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Solution

The fourth proportional to 345,109.37, 476,177.72 and 217,711.13 is: 300,395.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,109.37 : 476,177.72 = 217,711.13 : x
  2. Step 2: Convert to fraction form
    345,109.37/476,177.72 = 217,711.13/x
  3. Step 3: Cross multiply
    345,109.37x = 476,177.72 × 217,711.13
  4. Step 4: Simplify right side
    345,109.37x = 103,669,186,032.58
  5. Step 5: Solve for x
    x = 103,669,186,032.58/345,109.37
  6. Step 6: Final answer
    x = 300,395.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.