Home / 254,999.40-382,499.10-122,139.15

Finding the Fourth Proportional to 254,999.40, 382,499.10 and 122,139.15

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Solution

The fourth proportional to 254,999.40, 382,499.10 and 122,139.15 is: 183,208.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,999.40 : 382,499.10 = 122,139.15 : x
  2. Step 2: Convert to fraction form
    254,999.40/382,499.10 = 122,139.15/x
  3. Step 3: Cross multiply
    254,999.40x = 382,499.10 × 122,139.15
  4. Step 4: Simplify right side
    254,999.40x = 46,718,114,949.77
  5. Step 5: Solve for x
    x = 46,718,114,949.77/254,999.40
  6. Step 6: Final answer
    x = 183,208.73

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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.