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Finding the Fourth Proportional to 255,449.34, 352,526.40 and 142,273.98

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Solution

The fourth proportional to 255,449.34, 352,526.40 and 142,273.98 is: 196,341.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,449.34 : 352,526.40 = 142,273.98 : x
  2. Step 2: Convert to fraction form
    255,449.34/352,526.40 = 142,273.98/x
  3. Step 3: Cross multiply
    255,449.34x = 352,526.40 × 142,273.98
  4. Step 4: Simplify right side
    255,449.34x = 50,155,333,983.07
  5. Step 5: Solve for x
    x = 50,155,333,983.07/255,449.34
  6. Step 6: Final answer
    x = 196,341.61

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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.