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Finding the Fourth Proportional to 298,760.08, 448,210.18 and 118,855.72

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Solution

The fourth proportional to 298,760.08, 448,210.18 and 118,855.72 is: 178,311.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,760.08 : 448,210.18 = 118,855.72 : x
  2. Step 2: Convert to fraction form
    298,760.08/448,210.18 = 118,855.72/x
  3. Step 3: Cross multiply
    298,760.08x = 448,210.18 × 118,855.72
  4. Step 4: Simplify right side
    298,760.08x = 53,272,343,655.23
  5. Step 5: Solve for x
    x = 53,272,343,655.23/298,760.08
  6. Step 6: Final answer
    x = 178,311.45

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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.