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Finding the Fourth Proportional to 377,323.68, 520,720.40 and 207,570.72

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Solution

The fourth proportional to 377,323.68, 520,720.40 and 207,570.72 is: 286,455.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,323.68 : 520,720.40 = 207,570.72 : x
  2. Step 2: Convert to fraction form
    377,323.68/520,720.40 = 207,570.72/x
  3. Step 3: Cross multiply
    377,323.68x = 520,720.40 × 207,570.72
  4. Step 4: Simplify right side
    377,323.68x = 108,086,308,346.69
  5. Step 5: Solve for x
    x = 108,086,308,346.69/377,323.68
  6. Step 6: Final answer
    x = 286,455.14

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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.