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Finding the Fourth Proportional to 228,560.57, 342,525.56 and 172,338.89

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Solution

The fourth proportional to 228,560.57, 342,525.56 and 172,338.89 is: 258,270.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,560.57 : 342,525.56 = 172,338.89 : x
  2. Step 2: Convert to fraction form
    228,560.57/342,525.56 = 172,338.89/x
  3. Step 3: Cross multiply
    228,560.57x = 342,525.56 × 172,338.89
  4. Step 4: Simplify right side
    228,560.57x = 59,030,475,128.82
  5. Step 5: Solve for x
    x = 59,030,475,128.82/228,560.57
  6. Step 6: Final answer
    x = 258,270.60

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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.