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Finding the Fourth Proportional to 309,594.29, 427,361.80 and 207,582.59

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Solution

The fourth proportional to 309,594.29, 427,361.80 and 207,582.59 is: 286,545.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,594.29 : 427,361.80 = 207,582.59 : x
  2. Step 2: Convert to fraction form
    309,594.29/427,361.80 = 207,582.59/x
  3. Step 3: Cross multiply
    309,594.29x = 427,361.80 × 207,582.59
  4. Step 4: Simplify right side
    309,594.29x = 88,712,869,860.51
  5. Step 5: Solve for x
    x = 88,712,869,860.51/309,594.29
  6. Step 6: Final answer
    x = 286,545.56

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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.