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Finding the Fourth Proportional to 298,073.60, 448,013.69 and 197,215.66

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Solution

The fourth proportional to 298,073.60, 448,013.69 and 197,215.66 is: 296,421.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,073.60 : 448,013.69 = 197,215.66 : x
  2. Step 2: Convert to fraction form
    298,073.60/448,013.69 = 197,215.66/x
  3. Step 3: Cross multiply
    298,073.60x = 448,013.69 × 197,215.66
  4. Step 4: Simplify right side
    298,073.60x = 88,355,315,875.88
  5. Step 5: Solve for x
    x = 88,355,315,875.88/298,073.60
  6. Step 6: Final answer
    x = 296,421.14

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1.5x scale

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.