Home / 309,669.08-464,504.36-85,032.60

Finding the Fourth Proportional to 309,669.08, 464,504.36 and 85,032.60

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Solution

The fourth proportional to 309,669.08, 464,504.36 and 85,032.60 is: 127,549.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,669.08 : 464,504.36 = 85,032.60 : x
  2. Step 2: Convert to fraction form
    309,669.08/464,504.36 = 85,032.60/x
  3. Step 3: Cross multiply
    309,669.08x = 464,504.36 × 85,032.60
  4. Step 4: Simplify right side
    309,669.08x = 39,498,013,442.14
  5. Step 5: Solve for x
    x = 39,498,013,442.14/309,669.08
  6. Step 6: Final answer
    x = 127,549.10

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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.