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Finding the Fourth Proportional to 255,456.23, 352,503.12 and 157,323.94

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Solution

The fourth proportional to 255,456.23, 352,503.12 and 157,323.94 is: 217,090.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,456.23 : 352,503.12 = 157,323.94 : x
  2. Step 2: Convert to fraction form
    255,456.23/352,503.12 = 157,323.94/x
  3. Step 3: Cross multiply
    255,456.23x = 352,503.12 × 157,323.94
  4. Step 4: Simplify right side
    255,456.23x = 55,457,179,409.40
  5. Step 5: Solve for x
    x = 55,457,179,409.40/255,456.23
  6. Step 6: Final answer
    x = 217,090.73

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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.