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Finding the Fourth Proportional to 253,954.15, 350,460.69 and 139,243.27

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Solution

The fourth proportional to 253,954.15, 350,460.69 and 139,243.27 is: 192,157.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,954.15 : 350,460.69 = 139,243.27 : x
  2. Step 2: Convert to fraction form
    253,954.15/350,460.69 = 139,243.27/x
  3. Step 3: Cross multiply
    253,954.15x = 350,460.69 × 139,243.27
  4. Step 4: Simplify right side
    253,954.15x = 48,799,292,482.06
  5. Step 5: Solve for x
    x = 48,799,292,482.06/253,954.15
  6. Step 6: Final answer
    x = 192,157.89

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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.