Home / 354,097.18-531,228.63-140,877.15

Finding the Fourth Proportional to 354,097.18, 531,228.63 and 140,877.15

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Solution

The fourth proportional to 354,097.18, 531,228.63 and 140,877.15 is: 211,348.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,097.18 : 531,228.63 = 140,877.15 : x
  2. Step 2: Convert to fraction form
    354,097.18/531,228.63 = 140,877.15/x
  3. Step 3: Cross multiply
    354,097.18x = 531,228.63 × 140,877.15
  4. Step 4: Simplify right side
    354,097.18x = 74,837,975,392.80
  5. Step 5: Solve for x
    x = 74,837,975,392.80/354,097.18
  6. Step 6: Final answer
    x = 211,348.69

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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.