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Finding the Fourth Proportional to 433,830.80, 650,746.20 and 256,246.40

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Solution

The fourth proportional to 433,830.80, 650,746.20 and 256,246.40 is: 384,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,830.80 : 650,746.20 = 256,246.40 : x
  2. Step 2: Convert to fraction form
    433,830.80/650,746.20 = 256,246.40/x
  3. Step 3: Cross multiply
    433,830.80x = 650,746.20 × 256,246.40
  4. Step 4: Simplify right side
    433,830.80x = 166,751,371,063.68
  5. Step 5: Solve for x
    x = 166,751,371,063.68/433,830.80
  6. Step 6: Final answer
    x = 384,369.60

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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.