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Finding the Fourth Proportional to 377,112.54, 520,417.26 and 207,357.60

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Solution

The fourth proportional to 377,112.54, 520,417.26 and 207,357.60 is: 286,154.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,112.54 : 520,417.26 = 207,357.60 : x
  2. Step 2: Convert to fraction form
    377,112.54/520,417.26 = 207,357.60/x
  3. Step 3: Cross multiply
    377,112.54x = 520,417.26 × 207,357.60
  4. Step 4: Simplify right side
    377,112.54x = 107,912,474,032.18
  5. Step 5: Solve for x
    x = 107,912,474,032.18/377,112.54
  6. Step 6: Final answer
    x = 286,154.56

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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.