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Finding the Fourth Proportional to 310,537.56, 428,518.23 and 174,549.90

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Solution

The fourth proportional to 310,537.56, 428,518.23 and 174,549.90 is: 240,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,537.56 : 428,518.23 = 174,549.90 : x
  2. Step 2: Convert to fraction form
    310,537.56/428,518.23 = 174,549.90/x
  3. Step 3: Cross multiply
    310,537.56x = 428,518.23 × 174,549.90
  4. Step 4: Simplify right side
    310,537.56x = 74,797,814,194.68
  5. Step 5: Solve for x
    x = 74,797,814,194.68/310,537.56
  6. Step 6: Final answer
    x = 240,865.60

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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.