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Finding the Fourth Proportional to 383,417.62, 529,118.41 and 222,368.15

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Solution

The fourth proportional to 383,417.62, 529,118.41 and 222,368.15 is: 306,869.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,417.62 : 529,118.41 = 222,368.15 : x
  2. Step 2: Convert to fraction form
    383,417.62/529,118.41 = 222,368.15/x
  3. Step 3: Cross multiply
    383,417.62x = 529,118.41 × 222,368.15
  4. Step 4: Simplify right side
    383,417.62x = 117,659,081,962.64
  5. Step 5: Solve for x
    x = 117,659,081,962.64/383,417.62
  6. Step 6: Final answer
    x = 306,869.26

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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.