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Finding the Fourth Proportional to 272,006.60, 408,048.30 and 84,998.60

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Solution

The fourth proportional to 272,006.60, 408,048.30 and 84,998.60 is: 127,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,006.60 : 408,048.30 = 84,998.60 : x
  2. Step 2: Convert to fraction form
    272,006.60/408,048.30 = 84,998.60/x
  3. Step 3: Cross multiply
    272,006.60x = 408,048.30 × 84,998.60
  4. Step 4: Simplify right side
    272,006.60x = 34,683,534,232.38
  5. Step 5: Solve for x
    x = 34,683,534,232.38/272,006.60
  6. Step 6: Final answer
    x = 127,509.90

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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.