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Finding the Fourth Proportional to 272,312.30, 408,468.45 and 202,328.30

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Solution

The fourth proportional to 272,312.30, 408,468.45 and 202,328.30 is: 303,492.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,312.30 : 408,468.45 = 202,328.30 : x
  2. Step 2: Convert to fraction form
    272,312.30/408,468.45 = 202,328.30/x
  3. Step 3: Cross multiply
    272,312.30x = 408,468.45 × 202,328.30
  4. Step 4: Simplify right side
    272,312.30x = 82,644,727,092.14
  5. Step 5: Solve for x
    x = 82,644,727,092.14/272,312.30
  6. Step 6: Final answer
    x = 303,492.45

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1.5x scale

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.