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Finding the Fourth Proportional to 360,671.85, 497,570.70 and 217,350.45

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Solution

The fourth proportional to 360,671.85, 497,570.70 and 217,350.45 is: 299,849.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,671.85 : 497,570.70 = 217,350.45 : x
  2. Step 2: Convert to fraction form
    360,671.85/497,570.70 = 217,350.45/x
  3. Step 3: Cross multiply
    360,671.85x = 497,570.70 × 217,350.45
  4. Step 4: Simplify right side
    360,671.85x = 108,147,215,551.82
  5. Step 5: Solve for x
    x = 108,147,215,551.82/360,671.85
  6. Step 6: Final answer
    x = 299,849.34

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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.