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Finding the Fourth Proportional to 459,007.70, 688,317.15 and 222,422.90

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Solution

The fourth proportional to 459,007.70, 688,317.15 and 222,422.90 is: 333,540.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,007.70 : 688,317.15 = 222,422.90 : x
  2. Step 2: Convert to fraction form
    459,007.70/688,317.15 = 222,422.90/x
  3. Step 3: Cross multiply
    459,007.70x = 688,317.15 × 222,422.90
  4. Step 4: Simplify right side
    459,007.70x = 153,097,496,622.74
  5. Step 5: Solve for x
    x = 153,097,496,622.74/459,007.70
  6. Step 6: Final answer
    x = 333,540.15

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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.