Home / 284,911.20-427,374-97,921.44

Finding the Fourth Proportional to 284,911.20, 427,374 and 97,921.44

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Solution

The fourth proportional to 284,911.20, 427,374 and 97,921.44 is: 146,884.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,911.20 : 427,374 = 97,921.44 : x
  2. Step 2: Convert to fraction form
    284,911.20/427,374 = 97,921.44/x
  3. Step 3: Cross multiply
    284,911.20x = 427,374 × 97,921.44
  4. Step 4: Simplify right side
    284,911.20x = 41,849,077,498.56
  5. Step 5: Solve for x
    x = 41,849,077,498.56/284,911.20
  6. Step 6: Final answer
    x = 146,884.63

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1.5x scale

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.