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Finding the Fourth Proportional to 561,368.39, 842,122.61 and 219,767.67

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Solution

The fourth proportional to 561,368.39, 842,122.61 and 219,767.67 is: 329,678.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,368.39 : 842,122.61 = 219,767.67 : x
  2. Step 2: Convert to fraction form
    561,368.39/842,122.61 = 219,767.67/x
  3. Step 3: Cross multiply
    561,368.39x = 842,122.61 × 219,767.67
  4. Step 4: Simplify right side
    561,368.39x = 185,071,323,854.02
  5. Step 5: Solve for x
    x = 185,071,323,854.02/561,368.39
  6. Step 6: Final answer
    x = 329,678.92

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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.