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Finding the Fourth Proportional to 443,886.90, 665,830.35 and 302,169.30

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Solution

The fourth proportional to 443,886.90, 665,830.35 and 302,169.30 is: 453,253.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,886.90 : 665,830.35 = 302,169.30 : x
  2. Step 2: Convert to fraction form
    443,886.90/665,830.35 = 302,169.30/x
  3. Step 3: Cross multiply
    443,886.90x = 665,830.35 × 302,169.30
  4. Step 4: Simplify right side
    443,886.90x = 201,193,490,778.26
  5. Step 5: Solve for x
    x = 201,193,490,778.26/443,886.90
  6. Step 6: Final answer
    x = 453,253.95

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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.