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Finding the Fourth Proportional to 300,710.55, 414,980.90 and 162,889.76

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Solution

The fourth proportional to 300,710.55, 414,980.90 and 162,889.76 is: 224,788.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,710.55 : 414,980.90 = 162,889.76 : x
  2. Step 2: Convert to fraction form
    300,710.55/414,980.90 = 162,889.76/x
  3. Step 3: Cross multiply
    300,710.55x = 414,980.90 × 162,889.76
  4. Step 4: Simplify right side
    300,710.55x = 67,596,137,537.90
  5. Step 5: Solve for x
    x = 67,596,137,537.90/300,710.55
  6. Step 6: Final answer
    x = 224,788.05

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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.