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Finding the Fourth Proportional to 300,720.64, 414,994.81 and 162,899.89

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Solution

The fourth proportional to 300,720.64, 414,994.81 and 162,899.89 is: 224,802.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,720.64 : 414,994.81 = 162,899.89 : x
  2. Step 2: Convert to fraction form
    300,720.64/414,994.81 = 162,899.89/x
  3. Step 3: Cross multiply
    300,720.64x = 414,994.81 × 162,899.89
  4. Step 4: Simplify right side
    300,720.64x = 67,602,609,562.85
  5. Step 5: Solve for x
    x = 67,602,609,562.85/300,720.64
  6. Step 6: Final answer
    x = 224,802.02

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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.