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Finding the Fourth Proportional to 360,978.63, 498,275.75 and 223,262.93

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Solution

The fourth proportional to 360,978.63, 498,275.75 and 223,262.93 is: 308,180.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,978.63 : 498,275.75 = 223,262.93 : x
  2. Step 2: Convert to fraction form
    360,978.63/498,275.75 = 223,262.93/x
  3. Step 3: Cross multiply
    360,978.63x = 498,275.75 × 223,262.93
  4. Step 4: Simplify right side
    360,978.63x = 111,246,505,696.79
  5. Step 5: Solve for x
    x = 111,246,505,696.79/360,978.63
  6. Step 6: Final answer
    x = 308,180.31

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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.