Home / 256,619.72-384,733.36-155,395.74

Finding the Fourth Proportional to 256,619.72, 384,733.36 and 155,395.74

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Solution

The fourth proportional to 256,619.72, 384,733.36 and 155,395.74 is: 232,974.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,619.72 : 384,733.36 = 155,395.74 : x
  2. Step 2: Convert to fraction form
    256,619.72/384,733.36 = 155,395.74/x
  3. Step 3: Cross multiply
    256,619.72x = 384,733.36 × 155,395.74
  4. Step 4: Simplify right side
    256,619.72x = 59,785,925,179.89
  5. Step 5: Solve for x
    x = 59,785,925,179.89/256,619.72
  6. Step 6: Final answer
    x = 232,974.79

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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.