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Finding the Fourth Proportional to 361,622.32, 499,038.24 and 218,354.32

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Solution

The fourth proportional to 361,622.32, 499,038.24 and 218,354.32 is: 301,328.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,622.32 : 499,038.24 = 218,354.32 : x
  2. Step 2: Convert to fraction form
    361,622.32/499,038.24 = 218,354.32/x
  3. Step 3: Cross multiply
    361,622.32x = 499,038.24 × 218,354.32
  4. Step 4: Simplify right side
    361,622.32x = 108,967,155,549.20
  5. Step 5: Solve for x
    x = 108,967,155,549.20/361,622.32
  6. Step 6: Final answer
    x = 301,328.62

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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.