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Finding the Fourth Proportional to 515,430.60, 773,145.90 and 141,453.60

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Solution

The fourth proportional to 515,430.60, 773,145.90 and 141,453.60 is: 212,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,430.60 : 773,145.90 = 141,453.60 : x
  2. Step 2: Convert to fraction form
    515,430.60/773,145.90 = 141,453.60/x
  3. Step 3: Cross multiply
    515,430.60x = 773,145.90 × 141,453.60
  4. Step 4: Simplify right side
    515,430.60x = 109,364,270,880.24
  5. Step 5: Solve for x
    x = 109,364,270,880.24/515,430.60
  6. Step 6: Final answer
    x = 212,180.40

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Similar ratio
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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.