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Finding the Fourth Proportional to 561,550.40, 842,369.76 and 187,574.72

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Solution

The fourth proportional to 561,550.40, 842,369.76 and 187,574.72 is: 281,376.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,550.40 : 842,369.76 = 187,574.72 : x
  2. Step 2: Convert to fraction form
    561,550.40/842,369.76 = 187,574.72/x
  3. Step 3: Cross multiply
    561,550.40x = 842,369.76 × 187,574.72
  4. Step 4: Simplify right side
    561,550.40x = 158,007,271,868.47
  5. Step 5: Solve for x
    x = 158,007,271,868.47/561,550.40
  6. Step 6: Final answer
    x = 281,376.83

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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.