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Finding the Fourth Proportional to 369,164.79, 509,449.77 and 216,293.49

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Solution

The fourth proportional to 369,164.79, 509,449.77 and 216,293.49 is: 298,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,164.79 : 509,449.77 = 216,293.49 : x
  2. Step 2: Convert to fraction form
    369,164.79/509,449.77 = 216,293.49/x
  3. Step 3: Cross multiply
    369,164.79x = 509,449.77 × 216,293.49
  4. Step 4: Simplify right side
    369,164.79x = 110,190,668,733.00
  5. Step 5: Solve for x
    x = 110,190,668,733.00/369,164.79
  6. Step 6: Final answer
    x = 298,486.40

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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.