Home / 389,299.26-537,233.40-228,122.22

Finding the Fourth Proportional to 389,299.26, 537,233.40 and 228,122.22

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Solution

The fourth proportional to 389,299.26, 537,233.40 and 228,122.22 is: 314,808.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,299.26 : 537,233.40 = 228,122.22 : x
  2. Step 2: Convert to fraction form
    389,299.26/537,233.40 = 228,122.22/x
  3. Step 3: Cross multiply
    389,299.26x = 537,233.40 × 228,122.22
  4. Step 4: Simplify right side
    389,299.26x = 122,554,875,866.15
  5. Step 5: Solve for x
    x = 122,554,875,866.15/389,299.26
  6. Step 6: Final answer
    x = 314,808.91

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1.5x scale

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.