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Finding the Fourth Proportional to 383,483.76, 529,209.36 and 222,434.16

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Solution

The fourth proportional to 383,483.76, 529,209.36 and 222,434.16 is: 306,960.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,483.76 : 529,209.36 = 222,434.16 : x
  2. Step 2: Convert to fraction form
    383,483.76/529,209.36 = 222,434.16/x
  3. Step 3: Cross multiply
    383,483.76x = 529,209.36 × 222,434.16
  4. Step 4: Simplify right side
    383,483.76x = 117,714,239,455.74
  5. Step 5: Solve for x
    x = 117,714,239,455.74/383,483.76
  6. Step 6: Final answer
    x = 306,960.17

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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.