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Finding the Fourth Proportional to 370,479.32, 511,048.26 and 223,201.88

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Solution

The fourth proportional to 370,479.32, 511,048.26 and 223,201.88 is: 307,890.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,479.32 : 511,048.26 = 223,201.88 : x
  2. Step 2: Convert to fraction form
    370,479.32/511,048.26 = 223,201.88/x
  3. Step 3: Cross multiply
    370,479.32x = 511,048.26 × 223,201.88
  4. Step 4: Simplify right side
    370,479.32x = 114,066,929,847.49
  5. Step 5: Solve for x
    x = 114,066,929,847.49/370,479.32
  6. Step 6: Final answer
    x = 307,890.14

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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.