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Finding the Fourth Proportional to 434,556.70, 651,883.65 and 135,034.90

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Solution

The fourth proportional to 434,556.70, 651,883.65 and 135,034.90 is: 202,567.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,556.70 : 651,883.65 = 135,034.90 : x
  2. Step 2: Convert to fraction form
    434,556.70/651,883.65 = 135,034.90/x
  3. Step 3: Cross multiply
    434,556.70x = 651,883.65 × 135,034.90
  4. Step 4: Simplify right side
    434,556.70x = 88,027,043,489.39
  5. Step 5: Solve for x
    x = 88,027,043,489.39/434,556.70
  6. Step 6: Final answer
    x = 202,567.45

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1.5x scale

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.