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Finding the Fourth Proportional to 309,009.96, 426,487.14 and 174,873.96

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Solution

The fourth proportional to 309,009.96, 426,487.14 and 174,873.96 is: 241,356.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,009.96 : 426,487.14 = 174,873.96 : x
  2. Step 2: Convert to fraction form
    309,009.96/426,487.14 = 174,873.96/x
  3. Step 3: Cross multiply
    309,009.96x = 426,487.14 × 174,873.96
  4. Step 4: Simplify right side
    309,009.96x = 74,581,495,060.87
  5. Step 5: Solve for x
    x = 74,581,495,060.87/309,009.96
  6. Step 6: Final answer
    x = 241,356.28

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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.