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Finding the Fourth Proportional to 255,478.91, 352,544.00 and 153,443.73

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Solution

The fourth proportional to 255,478.91, 352,544.00 and 153,443.73 is: 211,742.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,478.91 : 352,544.00 = 153,443.73 : x
  2. Step 2: Convert to fraction form
    255,478.91/352,544.00 = 153,443.73/x
  3. Step 3: Cross multiply
    255,478.91x = 352,544.00 × 153,443.73
  4. Step 4: Simplify right side
    255,478.91x = 54,095,666,732.73
  5. Step 5: Solve for x
    x = 54,095,666,732.73/255,478.91
  6. Step 6: Final answer
    x = 211,742.21

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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.