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Finding the Fourth Proportional to 360,977.03, 497,991.93 and 217,657.45

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Solution

The fourth proportional to 360,977.03, 497,991.93 and 217,657.45 is: 300,272.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,977.03 : 497,991.93 = 217,657.45 : x
  2. Step 2: Convert to fraction form
    360,977.03/497,991.93 = 217,657.45/x
  3. Step 3: Cross multiply
    360,977.03x = 497,991.93 × 217,657.45
  4. Step 4: Simplify right side
    360,977.03x = 108,391,651,893.60
  5. Step 5: Solve for x
    x = 108,391,651,893.60/360,977.03
  6. Step 6: Final answer
    x = 300,272.99

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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.