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Finding the Fourth Proportional to 256,392.62, 384,584.67 and 98,655.24

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Solution

The fourth proportional to 256,392.62, 384,584.67 and 98,655.24 is: 147,981.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,392.62 : 384,584.67 = 98,655.24 : x
  2. Step 2: Convert to fraction form
    256,392.62/384,584.67 = 98,655.24/x
  3. Step 3: Cross multiply
    256,392.62x = 384,584.67 × 98,655.24
  4. Step 4: Simplify right side
    256,392.62x = 37,941,292,919.17
  5. Step 5: Solve for x
    x = 37,941,292,919.17/256,392.62
  6. Step 6: Final answer
    x = 147,981.22

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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.