Home / 389,410.88-537,394.02-228,382.07

Finding the Fourth Proportional to 389,410.88, 537,394.02 and 228,382.07

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Solution

The fourth proportional to 389,410.88, 537,394.02 and 228,382.07 is: 315,171.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,410.88 : 537,394.02 = 228,382.07 : x
  2. Step 2: Convert to fraction form
    389,410.88/537,394.02 = 228,382.07/x
  3. Step 3: Cross multiply
    389,410.88x = 537,394.02 × 228,382.07
  4. Step 4: Simplify right side
    389,410.88x = 122,731,160,036.71
  5. Step 5: Solve for x
    x = 122,731,160,036.71/389,410.88
  6. Step 6: Final answer
    x = 315,171.37

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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.