Home / 389,437.28-537,252.72-228,210.56

Finding the Fourth Proportional to 389,437.28, 537,252.72 and 228,210.56

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Solution

The fourth proportional to 389,437.28, 537,252.72 and 228,210.56 is: 314,830.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,437.28 : 537,252.72 = 228,210.56 : x
  2. Step 2: Convert to fraction form
    389,437.28/537,252.72 = 228,210.56/x
  3. Step 3: Cross multiply
    389,437.28x = 537,252.72 × 228,210.56
  4. Step 4: Simplify right side
    389,437.28x = 122,606,744,092.72
  5. Step 5: Solve for x
    x = 122,606,744,092.72/389,437.28
  6. Step 6: Final answer
    x = 314,830.53

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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.