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Finding the Fourth Proportional to 315,067.40, 434,798.58 and 171,832.68

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Solution

The fourth proportional to 315,067.40, 434,798.58 and 171,832.68 is: 237,132.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,067.40 : 434,798.58 = 171,832.68 : x
  2. Step 2: Convert to fraction form
    315,067.40/434,798.58 = 171,832.68/x
  3. Step 3: Cross multiply
    315,067.40x = 434,798.58 × 171,832.68
  4. Step 4: Simplify right side
    315,067.40x = 74,712,605,261.59
  5. Step 5: Solve for x
    x = 74,712,605,261.59/315,067.40
  6. Step 6: Final answer
    x = 237,132.14

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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.