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Finding the Fourth Proportional to 377,114.56, 520,420.02 and 207,359.60

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Solution

The fourth proportional to 377,114.56, 520,420.02 and 207,359.60 is: 286,157.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,114.56 : 520,420.02 = 207,359.60 : x
  2. Step 2: Convert to fraction form
    377,114.56/520,420.02 = 207,359.60/x
  3. Step 3: Cross multiply
    377,114.56x = 520,420.02 × 207,359.60
  4. Step 4: Simplify right side
    377,114.56x = 107,914,087,179.19
  5. Step 5: Solve for x
    x = 107,914,087,179.19/377,114.56
  6. Step 6: Final answer
    x = 286,157.31

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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.