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Finding the Fourth Proportional to 315,283.22, 472,911.58 and 146,745.58

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Solution

The fourth proportional to 315,283.22, 472,911.58 and 146,745.58 is: 220,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,283.22 : 472,911.58 = 146,745.58 : x
  2. Step 2: Convert to fraction form
    315,283.22/472,911.58 = 146,745.58/x
  3. Step 3: Cross multiply
    315,283.22x = 472,911.58 × 146,745.58
  4. Step 4: Simplify right side
    315,283.22x = 69,397,684,095.82
  5. Step 5: Solve for x
    x = 69,397,684,095.82/315,283.22
  6. Step 6: Final answer
    x = 220,112.20

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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.