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Finding the Fourth Proportional to 342,038.48, 472,009.62 and 191,135.48

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Solution

The fourth proportional to 342,038.48, 472,009.62 and 191,135.48 is: 263,765.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,038.48 : 472,009.62 = 191,135.48 : x
  2. Step 2: Convert to fraction form
    342,038.48/472,009.62 = 191,135.48/x
  3. Step 3: Cross multiply
    342,038.48x = 472,009.62 × 191,135.48
  4. Step 4: Simplify right side
    342,038.48x = 90,217,785,283.32
  5. Step 5: Solve for x
    x = 90,217,785,283.32/342,038.48
  6. Step 6: Final answer
    x = 263,765.02

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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.