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Finding the Fourth Proportional to 553,618.20, 830,427.30 and 179,641.20

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Solution

The fourth proportional to 553,618.20, 830,427.30 and 179,641.20 is: 269,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,618.20 : 830,427.30 = 179,641.20 : x
  2. Step 2: Convert to fraction form
    553,618.20/830,427.30 = 179,641.20/x
  3. Step 3: Cross multiply
    553,618.20x = 830,427.30 × 179,641.20
  4. Step 4: Simplify right side
    553,618.20x = 149,178,956,684.76
  5. Step 5: Solve for x
    x = 149,178,956,684.76/553,618.20
  6. Step 6: Final answer
    x = 269,461.80

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Similar ratio
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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.