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Finding the Fourth Proportional to 538,674.80, 808,012.20 and 164,649.20

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Solution

The fourth proportional to 538,674.80, 808,012.20 and 164,649.20 is: 246,973.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,674.80 : 808,012.20 = 164,649.20 : x
  2. Step 2: Convert to fraction form
    538,674.80/808,012.20 = 164,649.20/x
  3. Step 3: Cross multiply
    538,674.80x = 808,012.20 × 164,649.20
  4. Step 4: Simplify right side
    538,674.80x = 133,038,562,320.24
  5. Step 5: Solve for x
    x = 133,038,562,320.24/538,674.80
  6. Step 6: Final answer
    x = 246,973.80

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Similar ratio
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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.