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Finding the Fourth Proportional to 298,984.80, 448,477.20 and 156,635.40

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Solution

The fourth proportional to 298,984.80, 448,477.20 and 156,635.40 is: 234,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,984.80 : 448,477.20 = 156,635.40 : x
  2. Step 2: Convert to fraction form
    298,984.80/448,477.20 = 156,635.40/x
  3. Step 3: Cross multiply
    298,984.80x = 448,477.20 × 156,635.40
  4. Step 4: Simplify right side
    298,984.80x = 70,247,405,612.88
  5. Step 5: Solve for x
    x = 70,247,405,612.88/298,984.80
  6. Step 6: Final answer
    x = 234,953.10

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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.