Home / 256,731.02-354,284.43-142,009.57

Finding the Fourth Proportional to 256,731.02, 354,284.43 and 142,009.57

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Solution

The fourth proportional to 256,731.02, 354,284.43 and 142,009.57 is: 195,970.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,731.02 : 354,284.43 = 142,009.57 : x
  2. Step 2: Convert to fraction form
    256,731.02/354,284.43 = 142,009.57/x
  3. Step 3: Cross multiply
    256,731.02x = 354,284.43 × 142,009.57
  4. Step 4: Simplify right side
    256,731.02x = 50,311,779,562.00
  5. Step 5: Solve for x
    x = 50,311,779,562.00/256,731.02
  6. Step 6: Final answer
    x = 195,970.79

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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.