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Finding the Fourth Proportional to 663,663.60, 995,568.30 and 243,030.60

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Solution

The fourth proportional to 663,663.60, 995,568.30 and 243,030.60 is: 364,572.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,663.60 : 995,568.30 = 243,030.60 : x
  2. Step 2: Convert to fraction form
    663,663.60/995,568.30 = 243,030.60/x
  3. Step 3: Cross multiply
    663,663.60x = 995,568.30 × 243,030.60
  4. Step 4: Simplify right side
    663,663.60x = 241,953,561,289.98
  5. Step 5: Solve for x
    x = 241,953,561,289.98/663,663.60
  6. Step 6: Final answer
    x = 364,572.60

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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.