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Finding the Fourth Proportional to 510,064.40, 764,221.80 and 243,250.40

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Solution

The fourth proportional to 510,064.40, 764,221.80 and 243,250.40 is: 364,458.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,064.40 : 764,221.80 = 243,250.40 : x
  2. Step 2: Convert to fraction form
    510,064.40/764,221.80 = 243,250.40/x
  3. Step 3: Cross multiply
    510,064.40x = 764,221.80 × 243,250.40
  4. Step 4: Simplify right side
    510,064.40x = 185,897,258,538.72
  5. Step 5: Solve for x
    x = 185,897,258,538.72/510,064.40
  6. Step 6: Final answer
    x = 364,458.41

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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.