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Finding the Fourth Proportional to 255,391.84, 352,128.45 and 159,732.46

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Solution

The fourth proportional to 255,391.84, 352,128.45 and 159,732.46 is: 220,235.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,391.84 : 352,128.45 = 159,732.46 : x
  2. Step 2: Convert to fraction form
    255,391.84/352,128.45 = 159,732.46/x
  3. Step 3: Cross multiply
    255,391.84x = 352,128.45 × 159,732.46
  4. Step 4: Simplify right side
    255,391.84x = 56,246,343,554.49
  5. Step 5: Solve for x
    x = 56,246,343,554.49/255,391.84
  6. Step 6: Final answer
    x = 220,235.48

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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.