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Finding the Fourth Proportional to 208,756.76, 313,503.41 and 155,463.21

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Solution

The fourth proportional to 208,756.76, 313,503.41 and 155,463.21 is: 233,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,756.76 : 313,503.41 = 155,463.21 : x
  2. Step 2: Convert to fraction form
    208,756.76/313,503.41 = 155,463.21/x
  3. Step 3: Cross multiply
    208,756.76x = 313,503.41 × 155,463.21
  4. Step 4: Simplify right side
    208,756.76x = 48,738,246,853.20
  5. Step 5: Solve for x
    x = 48,738,246,853.20/208,756.76
  6. Step 6: Final answer
    x = 233,469.08

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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.