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Finding the Fourth Proportional to 393,397.24, 590,080.48 and 112,914.40

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Solution

The fourth proportional to 393,397.24, 590,080.48 and 112,914.40 is: 169,367.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,397.24 : 590,080.48 = 112,914.40 : x
  2. Step 2: Convert to fraction form
    393,397.24/590,080.48 = 112,914.40/x
  3. Step 3: Cross multiply
    393,397.24x = 590,080.48 × 112,914.40
  4. Step 4: Simplify right side
    393,397.24x = 66,628,583,350.91
  5. Step 5: Solve for x
    x = 66,628,583,350.91/393,397.24
  6. Step 6: Final answer
    x = 169,367.19

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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.