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Finding the Fourth Proportional to 298,071.15, 447,011.88 and 98,354.31

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Solution

The fourth proportional to 298,071.15, 447,011.88 and 98,354.31 is: 147,500.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,071.15 : 447,011.88 = 98,354.31 : x
  2. Step 2: Convert to fraction form
    298,071.15/447,011.88 = 98,354.31/x
  3. Step 3: Cross multiply
    298,071.15x = 447,011.88 × 98,354.31
  4. Step 4: Simplify right side
    298,071.15x = 43,965,545,019.20
  5. Step 5: Solve for x
    x = 43,965,545,019.20/298,071.15
  6. Step 6: Final answer
    x = 147,500.17

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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.