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Finding the Fourth Proportional to 306,339.62, 459,448.70 and 291,149.42

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Solution

The fourth proportional to 306,339.62, 459,448.70 and 291,149.42 is: 436,666.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,339.62 : 459,448.70 = 291,149.42 : x
  2. Step 2: Convert to fraction form
    306,339.62/459,448.70 = 291,149.42/x
  3. Step 3: Cross multiply
    306,339.62x = 459,448.70 × 291,149.42
  4. Step 4: Simplify right side
    306,339.62x = 133,768,222,217.63
  5. Step 5: Solve for x
    x = 133,768,222,217.63/306,339.62
  6. Step 6: Final answer
    x = 436,666.41

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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.