Home / 306,658.08-423,189.36-172,513.44

Finding the Fourth Proportional to 306,658.08, 423,189.36 and 172,513.44

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Solution

The fourth proportional to 306,658.08, 423,189.36 and 172,513.44 is: 238,069.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,658.08 : 423,189.36 = 172,513.44 : x
  2. Step 2: Convert to fraction form
    306,658.08/423,189.36 = 172,513.44/x
  3. Step 3: Cross multiply
    306,658.08x = 423,189.36 × 172,513.44
  4. Step 4: Simplify right side
    306,658.08x = 73,005,852,265.00
  5. Step 5: Solve for x
    x = 73,005,852,265.00/306,658.08
  6. Step 6: Final answer
    x = 238,069.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.