Home / 286,914.80-430,396.29-87,236.92

Finding the Fourth Proportional to 286,914.80, 430,396.29 and 87,236.92

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Solution

The fourth proportional to 286,914.80, 430,396.29 and 87,236.92 is: 130,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,914.80 : 430,396.29 = 87,236.92 : x
  2. Step 2: Convert to fraction form
    286,914.80/430,396.29 = 87,236.92/x
  3. Step 3: Cross multiply
    286,914.80x = 430,396.29 × 87,236.92
  4. Step 4: Simplify right side
    286,914.80x = 37,546,445,643.04
  5. Step 5: Solve for x
    x = 37,546,445,643.04/286,914.80
  6. Step 6: Final answer
    x = 130,862.70

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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.