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Finding the Fourth Proportional to 419,636.88, 630,004.02 and 249,169.68

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Solution

The fourth proportional to 419,636.88, 630,004.02 and 249,169.68 is: 374,080.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,636.88 : 630,004.02 = 249,169.68 : x
  2. Step 2: Convert to fraction form
    419,636.88/630,004.02 = 249,169.68/x
  3. Step 3: Cross multiply
    419,636.88x = 630,004.02 × 249,169.68
  4. Step 4: Simplify right side
    419,636.88x = 156,977,900,062.11
  5. Step 5: Solve for x
    x = 156,977,900,062.11/419,636.88
  6. Step 6: Final answer
    x = 374,080.32

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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.