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Finding the Fourth Proportional to 315,080.60, 434,805.93 and 171,832.10

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Solution

The fourth proportional to 315,080.60, 434,805.93 and 171,832.10 is: 237,125.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,080.60 : 434,805.93 = 171,832.10 : x
  2. Step 2: Convert to fraction form
    315,080.60/434,805.93 = 171,832.10/x
  3. Step 3: Cross multiply
    315,080.60x = 434,805.93 × 171,832.10
  4. Step 4: Simplify right side
    315,080.60x = 74,713,613,870.32
  5. Step 5: Solve for x
    x = 74,713,613,870.32/315,080.60
  6. Step 6: Final answer
    x = 237,125.41

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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.