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Finding the Fourth Proportional to 315,654, 435,615.48 and 181,518

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Solution

The fourth proportional to 315,654, 435,615.48 and 181,518 is: 250,502.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,654 : 435,615.48 = 181,518 : x
  2. Step 2: Convert to fraction form
    315,654/435,615.48 = 181,518/x
  3. Step 3: Cross multiply
    315,654x = 435,615.48 × 181,518
  4. Step 4: Simplify right side
    315,654x = 79,072,050,698.64
  5. Step 5: Solve for x
    x = 79,072,050,698.64/315,654
  6. Step 6: Final answer
    x = 250,502.29

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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.