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Finding the Fourth Proportional to 337,390.11, 465,539.81 and 208,400.85

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Solution

The fourth proportional to 337,390.11, 465,539.81 and 208,400.85 is: 287,557.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,390.11 : 465,539.81 = 208,400.85 : x
  2. Step 2: Convert to fraction form
    337,390.11/465,539.81 = 208,400.85/x
  3. Step 3: Cross multiply
    337,390.11x = 465,539.81 × 208,400.85
  4. Step 4: Simplify right side
    337,390.11x = 97,018,891,070.83
  5. Step 5: Solve for x
    x = 97,018,891,070.83/337,390.11
  6. Step 6: Final answer
    x = 287,557.01

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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.