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Finding the Fourth Proportional to 347,718.60, 479,380.50 and 297,273.24

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Solution

The fourth proportional to 347,718.60, 479,380.50 and 297,273.24 is: 409,834.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,718.60 : 479,380.50 = 297,273.24 : x
  2. Step 2: Convert to fraction form
    347,718.60/479,380.50 = 297,273.24/x
  3. Step 3: Cross multiply
    347,718.60x = 479,380.50 × 297,273.24
  4. Step 4: Simplify right side
    347,718.60x = 142,506,994,427.82
  5. Step 5: Solve for x
    x = 142,506,994,427.82/347,718.60
  6. Step 6: Final answer
    x = 409,834.26

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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.