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Finding the Fourth Proportional to 255,585.79, 352,710.75 and 140,868.60

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Solution

The fourth proportional to 255,585.79, 352,710.75 and 140,868.60 is: 194,399.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,585.79 : 352,710.75 = 140,868.60 : x
  2. Step 2: Convert to fraction form
    255,585.79/352,710.75 = 140,868.60/x
  3. Step 3: Cross multiply
    255,585.79x = 352,710.75 × 140,868.60
  4. Step 4: Simplify right side
    255,585.79x = 49,685,869,557.45
  5. Step 5: Solve for x
    x = 49,685,869,557.45/255,585.79
  6. Step 6: Final answer
    x = 194,399.97

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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.