Home / 286,836.66-430,254.78-87,156.24

Finding the Fourth Proportional to 286,836.66, 430,254.78 and 87,156.24

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Solution

The fourth proportional to 286,836.66, 430,254.78 and 87,156.24 is: 130,734.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,836.66 : 430,254.78 = 87,156.24 : x
  2. Step 2: Convert to fraction form
    286,836.66/430,254.78 = 87,156.24/x
  3. Step 3: Cross multiply
    286,836.66x = 430,254.78 × 87,156.24
  4. Step 4: Simplify right side
    286,836.66x = 37,499,388,866.83
  5. Step 5: Solve for x
    x = 37,499,388,866.83/286,836.66
  6. Step 6: Final answer
    x = 130,734.30

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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.