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Finding the Fourth Proportional to 256,389.62, 384,580.17 and 98,652.24

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Solution

The fourth proportional to 256,389.62, 384,580.17 and 98,652.24 is: 147,976.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,389.62 : 384,580.17 = 98,652.24 : x
  2. Step 2: Convert to fraction form
    256,389.62/384,580.17 = 98,652.24/x
  3. Step 3: Cross multiply
    256,389.62x = 384,580.17 × 98,652.24
  4. Step 4: Simplify right side
    256,389.62x = 37,939,695,230.08
  5. Step 5: Solve for x
    x = 37,939,695,230.08/256,389.62
  6. Step 6: Final answer
    x = 147,976.72

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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.