Home / 354,011.40-531,017.10-228,040.20

Finding the Fourth Proportional to 354,011.40, 531,017.10 and 228,040.20

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Solution

The fourth proportional to 354,011.40, 531,017.10 and 228,040.20 is: 342,060.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,011.40 : 531,017.10 = 228,040.20 : x
  2. Step 2: Convert to fraction form
    354,011.40/531,017.10 = 228,040.20/x
  3. Step 3: Cross multiply
    354,011.40x = 531,017.10 × 228,040.20
  4. Step 4: Simplify right side
    354,011.40x = 121,093,245,687.42
  5. Step 5: Solve for x
    x = 121,093,245,687.42/354,011.40
  6. Step 6: Final answer
    x = 342,060.30

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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.