Home / 207,276.12-310,914.18-74,148.30

Finding the Fourth Proportional to 207,276.12, 310,914.18 and 74,148.30

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Solution

The fourth proportional to 207,276.12, 310,914.18 and 74,148.30 is: 111,222.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,276.12 : 310,914.18 = 74,148.30 : x
  2. Step 2: Convert to fraction form
    207,276.12/310,914.18 = 74,148.30/x
  3. Step 3: Cross multiply
    207,276.12x = 310,914.18 × 74,148.30
  4. Step 4: Simplify right side
    207,276.12x = 23,053,757,892.89
  5. Step 5: Solve for x
    x = 23,053,757,892.89/207,276.12
  6. Step 6: Final answer
    x = 111,222.45

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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.