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Finding the Fourth Proportional to 219,207.20, 328,810.80 and 174,920.45

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Solution

The fourth proportional to 219,207.20, 328,810.80 and 174,920.45 is: 262,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,207.20 : 328,810.80 = 174,920.45 : x
  2. Step 2: Convert to fraction form
    219,207.20/328,810.80 = 174,920.45/x
  3. Step 3: Cross multiply
    219,207.20x = 328,810.80 × 174,920.45
  4. Step 4: Simplify right side
    219,207.20x = 57,515,733,100.86
  5. Step 5: Solve for x
    x = 57,515,733,100.86/219,207.20
  6. Step 6: Final answer
    x = 262,380.68

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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.