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Finding the Fourth Proportional to 298,952.10, 448,428.15 and 220,220.10

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Solution

The fourth proportional to 298,952.10, 448,428.15 and 220,220.10 is: 330,330.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,952.10 : 448,428.15 = 220,220.10 : x
  2. Step 2: Convert to fraction form
    298,952.10/448,428.15 = 220,220.10/x
  3. Step 3: Cross multiply
    298,952.10x = 448,428.15 × 220,220.10
  4. Step 4: Simplify right side
    298,952.10x = 98,752,892,035.82
  5. Step 5: Solve for x
    x = 98,752,892,035.82/298,952.10
  6. Step 6: Final answer
    x = 330,330.15

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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.