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Finding the Fourth Proportional to 369,243.68, 509,726.25 and 216,260.60

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Solution

The fourth proportional to 369,243.68, 509,726.25 and 216,260.60 is: 298,539.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,243.68 : 509,726.25 = 216,260.60 : x
  2. Step 2: Convert to fraction form
    369,243.68/509,726.25 = 216,260.60/x
  3. Step 3: Cross multiply
    369,243.68x = 509,726.25 × 216,260.60
  4. Step 4: Simplify right side
    369,243.68x = 110,233,702,112.12
  5. Step 5: Solve for x
    x = 110,233,702,112.12/369,243.68
  6. Step 6: Final answer
    x = 298,539.18

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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.