Home / 264,442.20-396,080.10-139,637.40

Finding the Fourth Proportional to 264,442.20, 396,080.10 and 139,637.40

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Solution

The fourth proportional to 264,442.20, 396,080.10 and 139,637.40 is: 209,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,442.20 : 396,080.10 = 139,637.40 : x
  2. Step 2: Convert to fraction form
    264,442.20/396,080.10 = 139,637.40/x
  3. Step 3: Cross multiply
    264,442.20x = 396,080.10 × 139,637.40
  4. Step 4: Simplify right side
    264,442.20x = 55,307,595,355.74
  5. Step 5: Solve for x
    x = 55,307,595,355.74/264,442.20
  6. Step 6: Final answer
    x = 209,148.14

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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.