Home / 389,842.46-537,987.09-228,700.25

Finding the Fourth Proportional to 389,842.46, 537,987.09 and 228,700.25

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Solution

The fourth proportional to 389,842.46, 537,987.09 and 228,700.25 is: 315,608.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,842.46 : 537,987.09 = 228,700.25 : x
  2. Step 2: Convert to fraction form
    389,842.46/537,987.09 = 228,700.25/x
  3. Step 3: Cross multiply
    389,842.46x = 537,987.09 × 228,700.25
  4. Step 4: Simplify right side
    389,842.46x = 123,037,781,979.77
  5. Step 5: Solve for x
    x = 123,037,781,979.77/389,842.46
  6. Step 6: Final answer
    x = 315,608.98

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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.