Home / 371,438.68-512,575.98-210,292.60

Finding the Fourth Proportional to 371,438.68, 512,575.98 and 210,292.60

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Solution

The fourth proportional to 371,438.68, 512,575.98 and 210,292.60 is: 290,198.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,438.68 : 512,575.98 = 210,292.60 : x
  2. Step 2: Convert to fraction form
    371,438.68/512,575.98 = 210,292.60/x
  3. Step 3: Cross multiply
    371,438.68x = 512,575.98 × 210,292.60
  4. Step 4: Simplify right side
    371,438.68x = 107,790,935,531.75
  5. Step 5: Solve for x
    x = 107,790,935,531.75/371,438.68
  6. Step 6: Final answer
    x = 290,198.47

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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.