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Finding the Fourth Proportional to 455,465.55, 682,741.11 and 155,741.16

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Solution

The fourth proportional to 455,465.55, 682,741.11 and 155,741.16 is: 233,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,465.55 : 682,741.11 = 155,741.16 : x
  2. Step 2: Convert to fraction form
    455,465.55/682,741.11 = 155,741.16/x
  3. Step 3: Cross multiply
    455,465.55x = 682,741.11 × 155,741.16
  4. Step 4: Simplify right side
    455,465.55x = 106,330,892,451.09
  5. Step 5: Solve for x
    x = 106,330,892,451.09/455,465.55
  6. Step 6: Final answer
    x = 233,455.40

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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.