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Finding the Fourth Proportional to 308,349.40, 462,524.10 and 291,242.20

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Solution

The fourth proportional to 308,349.40, 462,524.10 and 291,242.20 is: 436,863.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,349.40 : 462,524.10 = 291,242.20 : x
  2. Step 2: Convert to fraction form
    308,349.40/462,524.10 = 291,242.20/x
  3. Step 3: Cross multiply
    308,349.40x = 462,524.10 × 291,242.20
  4. Step 4: Simplify right side
    308,349.40x = 134,706,536,437.02
  5. Step 5: Solve for x
    x = 134,706,536,437.02/308,349.40
  6. Step 6: Final answer
    x = 436,863.30

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1.5x scale

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.