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Finding the Fourth Proportional to 207,222.93, 309,654.69 and 155,595

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Solution

The fourth proportional to 207,222.93, 309,654.69 and 155,595 is: 232,506.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,222.93 : 309,654.69 = 155,595 : x
  2. Step 2: Convert to fraction form
    207,222.93/309,654.69 = 155,595/x
  3. Step 3: Cross multiply
    207,222.93x = 309,654.69 × 155,595
  4. Step 4: Simplify right side
    207,222.93x = 48,180,721,490.55
  5. Step 5: Solve for x
    x = 48,180,721,490.55/207,222.93
  6. Step 6: Final answer
    x = 232,506.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.