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Finding the Fourth Proportional to 329,461.68, 493,627.80 and 221,188.24

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Solution

The fourth proportional to 329,461.68, 493,627.80 and 221,188.24 is: 331,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,461.68 : 493,627.80 = 221,188.24 : x
  2. Step 2: Convert to fraction form
    329,461.68/493,627.80 = 221,188.24/x
  3. Step 3: Cross multiply
    329,461.68x = 493,627.80 × 221,188.24
  4. Step 4: Simplify right side
    329,461.68x = 109,184,664,297.07
  5. Step 5: Solve for x
    x = 109,184,664,297.07/329,461.68
  6. Step 6: Final answer
    x = 331,403.23

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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.