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Finding the Fourth Proportional to 308,001.64, 425,037.78 and 172,037.51

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Solution

The fourth proportional to 308,001.64, 425,037.78 and 172,037.51 is: 237,409.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,001.64 : 425,037.78 = 172,037.51 : x
  2. Step 2: Convert to fraction form
    308,001.64/425,037.78 = 172,037.51/x
  3. Step 3: Cross multiply
    308,001.64x = 425,037.78 × 172,037.51
  4. Step 4: Simplify right side
    308,001.64x = 73,122,441,327.13
  5. Step 5: Solve for x
    x = 73,122,441,327.13/308,001.64
  6. Step 6: Final answer
    x = 237,409.26

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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.