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Finding the Fourth Proportional to 469,910.16, 648,488.76 and 255,050.64

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Solution

The fourth proportional to 469,910.16, 648,488.76 and 255,050.64 is: 351,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,910.16 : 648,488.76 = 255,050.64 : x
  2. Step 2: Convert to fraction form
    469,910.16/648,488.76 = 255,050.64/x
  3. Step 3: Cross multiply
    469,910.16x = 648,488.76 × 255,050.64
  4. Step 4: Simplify right side
    469,910.16x = 165,397,473,270.81
  5. Step 5: Solve for x
    x = 165,397,473,270.81/469,910.16
  6. Step 6: Final answer
    x = 351,976.80

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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.