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Finding the Fourth Proportional to 377,308.72, 520,677.48 and 207,539.20

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Solution

The fourth proportional to 377,308.72, 520,677.48 and 207,539.20 is: 286,399.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,308.72 : 520,677.48 = 207,539.20 : x
  2. Step 2: Convert to fraction form
    377,308.72/520,677.48 = 207,539.20/x
  3. Step 3: Cross multiply
    377,308.72x = 520,677.48 × 207,539.20
  4. Step 4: Simplify right side
    377,308.72x = 108,060,987,657.22
  5. Step 5: Solve for x
    x = 108,060,987,657.22/377,308.72
  6. Step 6: Final answer
    x = 286,399.39

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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.