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Finding the Fourth Proportional to 298,315.68, 447,473.53 and 245,614.45

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Solution

The fourth proportional to 298,315.68, 447,473.53 and 245,614.45 is: 368,421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,315.68 : 447,473.53 = 245,614.45 : x
  2. Step 2: Convert to fraction form
    298,315.68/447,473.53 = 245,614.45/x
  3. Step 3: Cross multiply
    298,315.68x = 447,473.53 × 245,614.45
  4. Step 4: Simplify right side
    298,315.68x = 109,905,965,210.19
  5. Step 5: Solve for x
    x = 109,905,965,210.19/298,315.68
  6. Step 6: Final answer
    x = 368,421.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.