Home / 298,811.60-448,217.40-109,271.60

Finding the Fourth Proportional to 298,811.60, 448,217.40 and 109,271.60

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Solution

The fourth proportional to 298,811.60, 448,217.40 and 109,271.60 is: 163,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,811.60 : 448,217.40 = 109,271.60 : x
  2. Step 2: Convert to fraction form
    298,811.60/448,217.40 = 109,271.60/x
  3. Step 3: Cross multiply
    298,811.60x = 448,217.40 × 109,271.60
  4. Step 4: Simplify right side
    298,811.60x = 48,977,432,445.84
  5. Step 5: Solve for x
    x = 48,977,432,445.84/298,811.60
  6. Step 6: Final answer
    x = 163,907.40

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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.