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Finding the Fourth Proportional to 357,777.80, 493,780.20 and 230,822.72

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Solution

The fourth proportional to 357,777.80, 493,780.20 and 230,822.72 is: 318,565.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,777.80 : 493,780.20 = 230,822.72 : x
  2. Step 2: Convert to fraction form
    357,777.80/493,780.20 = 230,822.72/x
  3. Step 3: Cross multiply
    357,777.80x = 493,780.20 × 230,822.72
  4. Step 4: Simplify right side
    357,777.80x = 113,975,688,846.14
  5. Step 5: Solve for x
    x = 113,975,688,846.14/357,777.80
  6. Step 6: Final answer
    x = 318,565.57

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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.