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Finding the Fourth Proportional to 298,672.86, 448,074.84 and 219,547.20

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Solution

The fourth proportional to 298,672.86, 448,074.84 and 219,547.20 is: 329,368.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,672.86 : 448,074.84 = 219,547.20 : x
  2. Step 2: Convert to fraction form
    298,672.86/448,074.84 = 219,547.20/x
  3. Step 3: Cross multiply
    298,672.86x = 448,074.84 × 219,547.20
  4. Step 4: Simplify right side
    298,672.86x = 98,373,576,512.45
  5. Step 5: Solve for x
    x = 98,373,576,512.45/298,672.86
  6. Step 6: Final answer
    x = 329,368.98

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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.