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Finding the Fourth Proportional to 253,984.05, 380,975.32 and 64,444.05

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Solution

The fourth proportional to 253,984.05, 380,975.32 and 64,444.05 is: 96,665.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,984.05 : 380,975.32 = 64,444.05 : x
  2. Step 2: Convert to fraction form
    253,984.05/380,975.32 = 64,444.05/x
  3. Step 3: Cross multiply
    253,984.05x = 380,975.32 × 64,444.05
  4. Step 4: Simplify right side
    253,984.05x = 24,551,593,781.53
  5. Step 5: Solve for x
    x = 24,551,593,781.53/253,984.05
  6. Step 6: Final answer
    x = 96,665.89

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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.