Home / 543,360.20-815,429.10-228,043.40

Finding the Fourth Proportional to 543,360.20, 815,429.10 and 228,043.40

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Solution

The fourth proportional to 543,360.20, 815,429.10 and 228,043.40 is: 342,228.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,360.20 : 815,429.10 = 228,043.40 : x
  2. Step 2: Convert to fraction form
    543,360.20/815,429.10 = 228,043.40/x
  3. Step 3: Cross multiply
    543,360.20x = 815,429.10 × 228,043.40
  4. Step 4: Simplify right side
    543,360.20x = 185,953,224,422.94
  5. Step 5: Solve for x
    x = 185,953,224,422.94/543,360.20
  6. Step 6: Final answer
    x = 342,228.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.