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Finding the Fourth Proportional to 500,362.31, 750,544.98 and 121,281.55

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Solution

The fourth proportional to 500,362.31, 750,544.98 and 121,281.55 is: 181,922.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,362.31 : 750,544.98 = 121,281.55 : x
  2. Step 2: Convert to fraction form
    500,362.31/750,544.98 = 121,281.55/x
  3. Step 3: Cross multiply
    500,362.31x = 750,544.98 × 121,281.55
  4. Step 4: Simplify right side
    500,362.31x = 91,027,256,642.76
  5. Step 5: Solve for x
    x = 91,027,256,642.76/500,362.31
  6. Step 6: Final answer
    x = 181,922.69

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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.