Home / 286,611.18-429,917.81-86,933.31

Finding the Fourth Proportional to 286,611.18, 429,917.81 and 86,933.31

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Solution

The fourth proportional to 286,611.18, 429,917.81 and 86,933.31 is: 130,400.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,611.18 : 429,917.81 = 86,933.31 : x
  2. Step 2: Convert to fraction form
    286,611.18/429,917.81 = 86,933.31/x
  3. Step 3: Cross multiply
    286,611.18x = 429,917.81 × 86,933.31
  4. Step 4: Simplify right side
    286,611.18x = 37,374,177,816.58
  5. Step 5: Solve for x
    x = 37,374,177,816.58/286,611.18
  6. Step 6: Final answer
    x = 130,400.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.