Home / 256,755.28-354,315.66-142,030.93

Finding the Fourth Proportional to 256,755.28, 354,315.66 and 142,030.93

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Solution

The fourth proportional to 256,755.28, 354,315.66 and 142,030.93 is: 195,999.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,755.28 : 354,315.66 = 142,030.93 : x
  2. Step 2: Convert to fraction form
    256,755.28/354,315.66 = 142,030.93/x
  3. Step 3: Cross multiply
    256,755.28x = 354,315.66 × 142,030.93
  4. Step 4: Simplify right side
    256,755.28x = 50,323,782,703.36
  5. Step 5: Solve for x
    x = 50,323,782,703.36/256,755.28
  6. Step 6: Final answer
    x = 195,999.02

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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.