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Finding the Fourth Proportional to 308,664.03, 465,309.54 and 288,089.15

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Solution

The fourth proportional to 308,664.03, 465,309.54 and 288,089.15 is: 434,293.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,664.03 : 465,309.54 = 288,089.15 : x
  2. Step 2: Convert to fraction form
    308,664.03/465,309.54 = 288,089.15/x
  3. Step 3: Cross multiply
    308,664.03x = 465,309.54 × 288,089.15
  4. Step 4: Simplify right side
    308,664.03x = 134,050,627,538.94
  5. Step 5: Solve for x
    x = 134,050,627,538.94/308,664.03
  6. Step 6: Final answer
    x = 434,293.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.