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Finding the Fourth Proportional to 342,389.04, 472,510.98 and 189,424.80

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Solution

The fourth proportional to 342,389.04, 472,510.98 and 189,424.80 is: 261,414.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,389.04 : 472,510.98 = 189,424.80 : x
  2. Step 2: Convert to fraction form
    342,389.04/472,510.98 = 189,424.80/x
  3. Step 3: Cross multiply
    342,389.04x = 472,510.98 × 189,424.80
  4. Step 4: Simplify right side
    342,389.04x = 89,505,297,884.30
  5. Step 5: Solve for x
    x = 89,505,297,884.30/342,389.04
  6. Step 6: Final answer
    x = 261,414.03

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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.