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Finding the Fourth Proportional to 219,001.76, 328,502.40 and 52,789.76

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Solution

The fourth proportional to 219,001.76, 328,502.40 and 52,789.76 is: 79,184.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,001.76 : 328,502.40 = 52,789.76 : x
  2. Step 2: Convert to fraction form
    219,001.76/328,502.40 = 52,789.76/x
  3. Step 3: Cross multiply
    219,001.76x = 328,502.40 × 52,789.76
  4. Step 4: Simplify right side
    219,001.76x = 17,341,562,855.42
  5. Step 5: Solve for x
    x = 17,341,562,855.42/219,001.76
  6. Step 6: Final answer
    x = 79,184.58

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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.