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Finding the Fourth Proportional to 554,285.10, 831,427.65 and 199,310.70

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Solution

The fourth proportional to 554,285.10, 831,427.65 and 199,310.70 is: 298,966.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,285.10 : 831,427.65 = 199,310.70 : x
  2. Step 2: Convert to fraction form
    554,285.10/831,427.65 = 199,310.70/x
  3. Step 3: Cross multiply
    554,285.10x = 831,427.65 × 199,310.70
  4. Step 4: Simplify right side
    554,285.10x = 165,712,426,920.86
  5. Step 5: Solve for x
    x = 165,712,426,920.86/554,285.10
  6. Step 6: Final answer
    x = 298,966.05

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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.