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Finding the Fourth Proportional to 342,442.47, 472,561.50 and 189,476.67

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Solution

The fourth proportional to 342,442.47, 472,561.50 and 189,476.67 is: 261,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,442.47 : 472,561.50 = 189,476.67 : x
  2. Step 2: Convert to fraction form
    342,442.47/472,561.50 = 189,476.67/x
  3. Step 3: Cross multiply
    342,442.47x = 472,561.50 × 189,476.67
  4. Step 4: Simplify right side
    342,442.47x = 89,539,379,390.21
  5. Step 5: Solve for x
    x = 89,539,379,390.21/342,442.47
  6. Step 6: Final answer
    x = 261,472.76

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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.