Home / 284,890.46-426,681.39-142,298.06

Finding the Fourth Proportional to 284,890.46, 426,681.39 and 142,298.06

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Solution

The fourth proportional to 284,890.46, 426,681.39 and 142,298.06 is: 213,120.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,890.46 : 426,681.39 = 142,298.06 : x
  2. Step 2: Convert to fraction form
    284,890.46/426,681.39 = 142,298.06/x
  3. Step 3: Cross multiply
    284,890.46x = 426,681.39 × 142,298.06
  4. Step 4: Simplify right side
    284,890.46x = 60,715,934,035.10
  5. Step 5: Solve for x
    x = 60,715,934,035.10/284,890.46
  6. Step 6: Final answer
    x = 213,120.28

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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.