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Finding the Fourth Proportional to 450,003, 621,017.10 and 248,811.96

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Solution

The fourth proportional to 450,003, 621,017.10 and 248,811.96 is: 343,367.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,003 : 621,017.10 = 248,811.96 : x
  2. Step 2: Convert to fraction form
    450,003/621,017.10 = 248,811.96/x
  3. Step 3: Cross multiply
    450,003x = 621,017.10 × 248,811.96
  4. Step 4: Simplify right side
    450,003x = 154,516,481,844.52
  5. Step 5: Solve for x
    x = 154,516,481,844.52/450,003
  6. Step 6: Final answer
    x = 343,367.67

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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.