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Finding the Fourth Proportional to 553,623.20, 830,434.80 and 179,646.20

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Solution

The fourth proportional to 553,623.20, 830,434.80 and 179,646.20 is: 269,469.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,623.20 : 830,434.80 = 179,646.20 : x
  2. Step 2: Convert to fraction form
    553,623.20/830,434.80 = 179,646.20/x
  3. Step 3: Cross multiply
    553,623.20x = 830,434.80 × 179,646.20
  4. Step 4: Simplify right side
    553,623.20x = 149,184,456,167.76
  5. Step 5: Solve for x
    x = 149,184,456,167.76/553,623.20
  6. Step 6: Final answer
    x = 269,469.30

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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.