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Finding the Fourth Proportional to 347,797.60, 521,696.40 and 318,637.60

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Solution

The fourth proportional to 347,797.60, 521,696.40 and 318,637.60 is: 477,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,797.60 : 521,696.40 = 318,637.60 : x
  2. Step 2: Convert to fraction form
    347,797.60/521,696.40 = 318,637.60/x
  3. Step 3: Cross multiply
    347,797.60x = 521,696.40 × 318,637.60
  4. Step 4: Simplify right side
    347,797.60x = 166,232,088,824.64
  5. Step 5: Solve for x
    x = 166,232,088,824.64/347,797.60
  6. Step 6: Final answer
    x = 477,956.40

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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.