Home / 286,011.24-428,848.64-108,530.74

Finding the Fourth Proportional to 286,011.24, 428,848.64 and 108,530.74

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Solution

The fourth proportional to 286,011.24, 428,848.64 and 108,530.74 is: 162,732.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,011.24 : 428,848.64 = 108,530.74 : x
  2. Step 2: Convert to fraction form
    286,011.24/428,848.64 = 108,530.74/x
  3. Step 3: Cross multiply
    286,011.24x = 428,848.64 × 108,530.74
  4. Step 4: Simplify right side
    286,011.24x = 46,543,260,247.19
  5. Step 5: Solve for x
    x = 46,543,260,247.19/286,011.24
  6. Step 6: Final answer
    x = 162,732.28

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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.