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Finding the Fourth Proportional to 377,221.41, 520,555.14 and 207,455.67

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Solution

The fourth proportional to 377,221.41, 520,555.14 and 207,455.67 is: 286,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,221.41 : 520,555.14 = 207,455.67 : x
  2. Step 2: Convert to fraction form
    377,221.41/520,555.14 = 207,455.67/x
  3. Step 3: Cross multiply
    377,221.41x = 520,555.14 × 207,455.67
  4. Step 4: Simplify right side
    377,221.41x = 107,992,115,340.64
  5. Step 5: Solve for x
    x = 107,992,115,340.64/377,221.41
  6. Step 6: Final answer
    x = 286,283.10

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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.