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Finding the Fourth Proportional to 207,111.60, 310,212.12 and 171,165.60

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Solution

The fourth proportional to 207,111.60, 310,212.12 and 171,165.60 is: 256,372.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,111.60 : 310,212.12 = 171,165.60 : x
  2. Step 2: Convert to fraction form
    207,111.60/310,212.12 = 171,165.60/x
  3. Step 3: Cross multiply
    207,111.60x = 310,212.12 × 171,165.60
  4. Step 4: Simplify right side
    207,111.60x = 53,097,643,647.07
  5. Step 5: Solve for x
    x = 53,097,643,647.07/207,111.60
  6. Step 6: Final answer
    x = 256,372.14

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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.