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Finding the Fourth Proportional to 255,658.69, 352,821.05 and 142,482.25

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Solution

The fourth proportional to 255,658.69, 352,821.05 and 142,482.25 is: 196,632.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,658.69 : 352,821.05 = 142,482.25 : x
  2. Step 2: Convert to fraction form
    255,658.69/352,821.05 = 142,482.25/x
  3. Step 3: Cross multiply
    255,658.69x = 352,821.05 × 142,482.25
  4. Step 4: Simplify right side
    255,658.69x = 50,270,737,051.36
  5. Step 5: Solve for x
    x = 50,270,737,051.36/255,658.69
  6. Step 6: Final answer
    x = 196,632.22

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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.