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Finding the Fourth Proportional to 342,483.02, 472,619.49 and 189,521.11

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Solution

The fourth proportional to 342,483.02, 472,619.49 and 189,521.11 is: 261,535.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,483.02 : 472,619.49 = 189,521.11 : x
  2. Step 2: Convert to fraction form
    342,483.02/472,619.49 = 189,521.11/x
  3. Step 3: Cross multiply
    342,483.02x = 472,619.49 × 189,521.11
  4. Step 4: Simplify right side
    342,483.02x = 89,571,370,566.48
  5. Step 5: Solve for x
    x = 89,571,370,566.48/342,483.02
  6. Step 6: Final answer
    x = 261,535.21

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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.