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Finding the Fourth Proportional to 354,903.40, 532,355.10 and 228,932.20

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Solution

The fourth proportional to 354,903.40, 532,355.10 and 228,932.20 is: 343,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,903.40 : 532,355.10 = 228,932.20 : x
  2. Step 2: Convert to fraction form
    354,903.40/532,355.10 = 228,932.20/x
  3. Step 3: Cross multiply
    354,903.40x = 532,355.10 × 228,932.20
  4. Step 4: Simplify right side
    354,903.40x = 121,873,224,224.22
  5. Step 5: Solve for x
    x = 121,873,224,224.22/354,903.40
  6. Step 6: Final answer
    x = 343,398.30

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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.