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Finding the Fourth Proportional to 500,810.65, 751,209.29 and 121,730.35

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Solution

The fourth proportional to 500,810.65, 751,209.29 and 121,730.35 is: 182,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,810.65 : 751,209.29 = 121,730.35 : x
  2. Step 2: Convert to fraction form
    500,810.65/751,209.29 = 121,730.35/x
  3. Step 3: Cross multiply
    500,810.65x = 751,209.29 × 121,730.35
  4. Step 4: Simplify right side
    500,810.65x = 91,444,969,186.30
  5. Step 5: Solve for x
    x = 91,444,969,186.30/500,810.65
  6. Step 6: Final answer
    x = 182,593.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.