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Finding the Fourth Proportional to 211,659.42, 317,476.77 and 154,790.93

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Solution

The fourth proportional to 211,659.42, 317,476.77 and 154,790.93 is: 232,177.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,659.42 : 317,476.77 = 154,790.93 : x
  2. Step 2: Convert to fraction form
    211,659.42/317,476.77 = 154,790.93/x
  3. Step 3: Cross multiply
    211,659.42x = 317,476.77 × 154,790.93
  4. Step 4: Simplify right side
    211,659.42x = 49,142,522,120.36
  5. Step 5: Solve for x
    x = 49,142,522,120.36/211,659.42
  6. Step 6: Final answer
    x = 232,177.35

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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.