Home / 354,096.81-531,228.07-140,876.78

Finding the Fourth Proportional to 354,096.81, 531,228.07 and 140,876.78

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Solution

The fourth proportional to 354,096.81, 531,228.07 and 140,876.78 is: 211,348.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,096.81 : 531,228.07 = 140,876.78 : x
  2. Step 2: Convert to fraction form
    354,096.81/531,228.07 = 140,876.78/x
  3. Step 3: Cross multiply
    354,096.81x = 531,228.07 × 140,876.78
  4. Step 4: Simplify right side
    354,096.81x = 74,837,698,971.34
  5. Step 5: Solve for x
    x = 74,837,698,971.34/354,096.81
  6. Step 6: Final answer
    x = 211,348.13

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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.