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Finding the Fourth Proportional to 310,244.80, 428,107.44 and 174,247.60

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Solution

The fourth proportional to 310,244.80, 428,107.44 and 174,247.60 is: 240,444.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,244.80 : 428,107.44 = 174,247.60 : x
  2. Step 2: Convert to fraction form
    310,244.80/428,107.44 = 174,247.60/x
  3. Step 3: Cross multiply
    310,244.80x = 428,107.44 × 174,247.60
  4. Step 4: Simplify right side
    310,244.80x = 74,596,693,962.14
  5. Step 5: Solve for x
    x = 74,596,693,962.14/310,244.80
  6. Step 6: Final answer
    x = 240,444.62

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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.