Home / 254,945.40-382,417.98-121,420.92

Finding the Fourth Proportional to 254,945.40, 382,417.98 and 121,420.92

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Solution

The fourth proportional to 254,945.40, 382,417.98 and 121,420.92 is: 182,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,945.40 : 382,417.98 = 121,420.92 : x
  2. Step 2: Convert to fraction form
    254,945.40/382,417.98 = 121,420.92/x
  3. Step 3: Cross multiply
    254,945.40x = 382,417.98 × 121,420.92
  4. Step 4: Simplify right side
    254,945.40x = 46,433,542,956.14
  5. Step 5: Solve for x
    x = 46,433,542,956.14/254,945.40
  6. Step 6: Final answer
    x = 182,131.32

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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.