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Finding the Fourth Proportional to 230,262.85, 317,741.02 and 128,277.91

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Solution

The fourth proportional to 230,262.85, 317,741.02 and 128,277.91 is: 177,011.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,262.85 : 317,741.02 = 128,277.91 : x
  2. Step 2: Convert to fraction form
    230,262.85/317,741.02 = 128,277.91/x
  3. Step 3: Cross multiply
    230,262.85x = 317,741.02 × 128,277.91
  4. Step 4: Simplify right side
    230,262.85x = 40,759,153,966.87
  5. Step 5: Solve for x
    x = 40,759,153,966.87/230,262.85
  6. Step 6: Final answer
    x = 177,011.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.