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Finding the Fourth Proportional to 219,215.20, 328,822.80 and 174,600.40

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Solution

The fourth proportional to 219,215.20, 328,822.80 and 174,600.40 is: 261,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,215.20 : 328,822.80 = 174,600.40 : x
  2. Step 2: Convert to fraction form
    219,215.20/328,822.80 = 174,600.40/x
  3. Step 3: Cross multiply
    219,215.20x = 328,822.80 × 174,600.40
  4. Step 4: Simplify right side
    219,215.20x = 57,412,592,409.12
  5. Step 5: Solve for x
    x = 57,412,592,409.12/219,215.20
  6. Step 6: Final answer
    x = 261,900.60

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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.