Home / 286,838.28-430,240.98-109,363.20

Finding the Fourth Proportional to 286,838.28, 430,240.98 and 109,363.20

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Solution

The fourth proportional to 286,838.28, 430,240.98 and 109,363.20 is: 164,038.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,838.28 : 430,240.98 = 109,363.20 : x
  2. Step 2: Convert to fraction form
    286,838.28/430,240.98 = 109,363.20/x
  3. Step 3: Cross multiply
    286,838.28x = 430,240.98 × 109,363.20
  4. Step 4: Simplify right side
    286,838.28x = 47,052,530,343.94
  5. Step 5: Solve for x
    x = 47,052,530,343.94/286,838.28
  6. Step 6: Final answer
    x = 164,038.53

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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.