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Finding the Fourth Proportional to 455,599.80, 683,399.70 and 243,023.40

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Solution

The fourth proportional to 455,599.80, 683,399.70 and 243,023.40 is: 364,535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,599.80 : 683,399.70 = 243,023.40 : x
  2. Step 2: Convert to fraction form
    455,599.80/683,399.70 = 243,023.40/x
  3. Step 3: Cross multiply
    455,599.80x = 683,399.70 × 243,023.40
  4. Step 4: Simplify right side
    455,599.80x = 166,082,118,652.98
  5. Step 5: Solve for x
    x = 166,082,118,652.98/455,599.80
  6. Step 6: Final answer
    x = 364,535.10

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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.