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Finding the Fourth Proportional to 315,029.70, 472,544.55 and 265,822.20

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Solution

The fourth proportional to 315,029.70, 472,544.55 and 265,822.20 is: 398,733.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,029.70 : 472,544.55 = 265,822.20 : x
  2. Step 2: Convert to fraction form
    315,029.70/472,544.55 = 265,822.20/x
  3. Step 3: Cross multiply
    315,029.70x = 472,544.55 × 265,822.20
  4. Step 4: Simplify right side
    315,029.70x = 125,612,831,879.01
  5. Step 5: Solve for x
    x = 125,612,831,879.01/315,029.70
  6. Step 6: Final answer
    x = 398,733.30

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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.