Home / 256,756.42-354,301.05-147,831.67

Finding the Fourth Proportional to 256,756.42, 354,301.05 and 147,831.67

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Solution

The fourth proportional to 256,756.42, 354,301.05 and 147,831.67 is: 203,994.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,756.42 : 354,301.05 = 147,831.67 : x
  2. Step 2: Convert to fraction form
    256,756.42/354,301.05 = 147,831.67/x
  3. Step 3: Cross multiply
    256,756.42x = 354,301.05 × 147,831.67
  4. Step 4: Simplify right side
    256,756.42x = 52,376,915,904.25
  5. Step 5: Solve for x
    x = 52,376,915,904.25/256,756.42
  6. Step 6: Final answer
    x = 203,994.57

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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.