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Finding the Fourth Proportional to 477,908.20, 716,894.70 and 162,388.90

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Solution

The fourth proportional to 477,908.20, 716,894.70 and 162,388.90 is: 243,594.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,908.20 : 716,894.70 = 162,388.90 : x
  2. Step 2: Convert to fraction form
    477,908.20/716,894.70 = 162,388.90/x
  3. Step 3: Cross multiply
    477,908.20x = 716,894.70 × 162,388.90
  4. Step 4: Simplify right side
    477,908.20x = 116,415,741,748.83
  5. Step 5: Solve for x
    x = 116,415,741,748.83/477,908.20
  6. Step 6: Final answer
    x = 243,594.36

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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.