Home / 430,261.22-645,367.05-164,048.64

Finding the Fourth Proportional to 430,261.22, 645,367.05 and 164,048.64

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Solution

The fourth proportional to 430,261.22, 645,367.05 and 164,048.64 is: 246,063.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,261.22 : 645,367.05 = 164,048.64 : x
  2. Step 2: Convert to fraction form
    430,261.22/645,367.05 = 164,048.64/x
  3. Step 3: Cross multiply
    430,261.22x = 645,367.05 × 164,048.64
  4. Step 4: Simplify right side
    430,261.22x = 105,871,586,853.31
  5. Step 5: Solve for x
    x = 105,871,586,853.31/430,261.22
  6. Step 6: Final answer
    x = 246,063.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.