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Finding the Fourth Proportional to 377,007.18, 520,270.47 and 207,242.34

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Solution

The fourth proportional to 377,007.18, 520,270.47 and 207,242.34 is: 285,994.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,007.18 : 520,270.47 = 207,242.34 : x
  2. Step 2: Convert to fraction form
    377,007.18/520,270.47 = 207,242.34/x
  3. Step 3: Cross multiply
    377,007.18x = 520,270.47 × 207,242.34
  4. Step 4: Simplify right side
    377,007.18x = 107,822,069,635.70
  5. Step 5: Solve for x
    x = 107,822,069,635.70/377,007.18
  6. Step 6: Final answer
    x = 285,994.74

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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.