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Finding the Fourth Proportional to 219,218.30, 328,827.45 and 159,440.30

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Solution

The fourth proportional to 219,218.30, 328,827.45 and 159,440.30 is: 239,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,218.30 : 328,827.45 = 159,440.30 : x
  2. Step 2: Convert to fraction form
    219,218.30/328,827.45 = 159,440.30/x
  3. Step 3: Cross multiply
    219,218.30x = 328,827.45 × 159,440.30
  4. Step 4: Simplify right side
    219,218.30x = 52,428,347,276.24
  5. Step 5: Solve for x
    x = 52,428,347,276.24/219,218.30
  6. Step 6: Final answer
    x = 239,160.45

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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.