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Finding the Fourth Proportional to 306,592.44, 459,944.28 and 126,678.21

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Solution

The fourth proportional to 306,592.44, 459,944.28 and 126,678.21 is: 190,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,592.44 : 459,944.28 = 126,678.21 : x
  2. Step 2: Convert to fraction form
    306,592.44/459,944.28 = 126,678.21/x
  3. Step 3: Cross multiply
    306,592.44x = 459,944.28 × 126,678.21
  4. Step 4: Simplify right side
    306,592.44x = 58,264,918,090.14
  5. Step 5: Solve for x
    x = 58,264,918,090.14/306,592.44
  6. Step 6: Final answer
    x = 190,040.30

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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.