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Finding the Fourth Proportional to 357,630.59, 493,324.93 and 223,261.31

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Solution

The fourth proportional to 357,630.59, 493,324.93 and 223,261.31 is: 307,972.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,630.59 : 493,324.93 = 223,261.31 : x
  2. Step 2: Convert to fraction form
    357,630.59/493,324.93 = 223,261.31/x
  3. Step 3: Cross multiply
    357,630.59x = 493,324.93 × 223,261.31
  4. Step 4: Simplify right side
    357,630.59x = 110,140,371,639.85
  5. Step 5: Solve for x
    x = 110,140,371,639.85/357,630.59
  6. Step 6: Final answer
    x = 307,972.46

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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.