Home / 255,023.74-351,925.46-138,733.56

Finding the Fourth Proportional to 255,023.74, 351,925.46 and 138,733.56

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Solution

The fourth proportional to 255,023.74, 351,925.46 and 138,733.56 is: 191,448.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,023.74 : 351,925.46 = 138,733.56 : x
  2. Step 2: Convert to fraction form
    255,023.74/351,925.46 = 138,733.56/x
  3. Step 3: Cross multiply
    255,023.74x = 351,925.46 × 138,733.56
  4. Step 4: Simplify right side
    255,023.74x = 48,823,871,747.02
  5. Step 5: Solve for x
    x = 48,823,871,747.02/255,023.74
  6. Step 6: Final answer
    x = 191,448.34

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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.