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Finding the Fourth Proportional to 298,666.80, 412,160 and 164,530.80

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Solution

The fourth proportional to 298,666.80, 412,160 and 164,530.80 is: 227,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,666.80 : 412,160 = 164,530.80 : x
  2. Step 2: Convert to fraction form
    298,666.80/412,160 = 164,530.80/x
  3. Step 3: Cross multiply
    298,666.80x = 412,160 × 164,530.80
  4. Step 4: Simplify right side
    298,666.80x = 67,813,014,528.00
  5. Step 5: Solve for x
    x = 67,813,014,528.00/298,666.80
  6. Step 6: Final answer
    x = 227,052.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.