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Finding the Fourth Proportional to 377,007.70, 520,257.42 and 207,240.60

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Solution

The fourth proportional to 377,007.70, 520,257.42 and 207,240.60 is: 285,984.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,007.70 : 520,257.42 = 207,240.60 : x
  2. Step 2: Convert to fraction form
    377,007.70/520,257.42 = 207,240.60/x
  3. Step 3: Cross multiply
    377,007.70x = 520,257.42 × 207,240.60
  4. Step 4: Simplify right side
    377,007.70x = 107,818,459,875.25
  5. Step 5: Solve for x
    x = 107,818,459,875.25/377,007.70
  6. Step 6: Final answer
    x = 285,984.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.