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Finding the Fourth Proportional to 308,785, 426,134.82 and 174,646.12

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Solution

The fourth proportional to 308,785, 426,134.82 and 174,646.12 is: 241,018.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,785 : 426,134.82 = 174,646.12 : x
  2. Step 2: Convert to fraction form
    308,785/426,134.82 = 174,646.12/x
  3. Step 3: Cross multiply
    308,785x = 426,134.82 × 174,646.12
  4. Step 4: Simplify right side
    308,785x = 74,422,792,909.90
  5. Step 5: Solve for x
    x = 74,422,792,909.90/308,785
  6. Step 6: Final answer
    x = 241,018.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.