Home / 342,439.47-472,557.38-189,473.67

Finding the Fourth Proportional to 342,439.47, 472,557.38 and 189,473.67

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Solution

The fourth proportional to 342,439.47, 472,557.38 and 189,473.67 is: 261,468.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,439.47 : 472,557.38 = 189,473.67 : x
  2. Step 2: Convert to fraction form
    342,439.47/472,557.38 = 189,473.67/x
  3. Step 3: Cross multiply
    342,439.47x = 472,557.38 × 189,473.67
  4. Step 4: Simplify right side
    342,439.47x = 89,537,180,126.82
  5. Step 5: Solve for x
    x = 89,537,180,126.82/342,439.47
  6. Step 6: Final answer
    x = 261,468.63

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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.