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Finding the Fourth Proportional to 357,638.35, 493,335.60 and 223,269.07

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Solution

The fourth proportional to 357,638.35, 493,335.60 and 223,269.07 is: 307,983.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,638.35 : 493,335.60 = 223,269.07 : x
  2. Step 2: Convert to fraction form
    357,638.35/493,335.60 = 223,269.07/x
  3. Step 3: Cross multiply
    357,638.35x = 493,335.60 × 223,269.07
  4. Step 4: Simplify right side
    357,638.35x = 110,146,580,609.89
  5. Step 5: Solve for x
    x = 110,146,580,609.89/357,638.35
  6. Step 6: Final answer
    x = 307,983.14

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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.