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Finding the Fourth Proportional to 354,271.62, 489,066.54 and 225,309.02

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Solution

The fourth proportional to 354,271.62, 489,066.54 and 225,309.02 is: 311,035.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,271.62 : 489,066.54 = 225,309.02 : x
  2. Step 2: Convert to fraction form
    354,271.62/489,066.54 = 225,309.02/x
  3. Step 3: Cross multiply
    354,271.62x = 489,066.54 × 225,309.02
  4. Step 4: Simplify right side
    354,271.62x = 110,191,102,842.19
  5. Step 5: Solve for x
    x = 110,191,102,842.19/354,271.62
  6. Step 6: Final answer
    x = 311,035.65

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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.