Home / 256,831.50-354,428.04-142,118.46

Finding the Fourth Proportional to 256,831.50, 354,428.04 and 142,118.46

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Solution

The fourth proportional to 256,831.50, 354,428.04 and 142,118.46 is: 196,123.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,831.50 : 354,428.04 = 142,118.46 : x
  2. Step 2: Convert to fraction form
    256,831.50/354,428.04 = 142,118.46/x
  3. Step 3: Cross multiply
    256,831.50x = 354,428.04 × 142,118.46
  4. Step 4: Simplify right side
    256,831.50x = 50,370,767,225.62
  5. Step 5: Solve for x
    x = 50,370,767,225.62/256,831.50
  6. Step 6: Final answer
    x = 196,123.79

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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.