Home / 430,032.23-645,072.96-130,522.58

Finding the Fourth Proportional to 430,032.23, 645,072.96 and 130,522.58

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Solution

The fourth proportional to 430,032.23, 645,072.96 and 130,522.58 is: 195,791.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,032.23 : 645,072.96 = 130,522.58 : x
  2. Step 2: Convert to fraction form
    430,032.23/645,072.96 = 130,522.58/x
  3. Step 3: Cross multiply
    430,032.23x = 645,072.96 × 130,522.58
  4. Step 4: Simplify right side
    430,032.23x = 84,196,587,027.44
  5. Step 5: Solve for x
    x = 84,196,587,027.44/430,032.23
  6. Step 6: Final answer
    x = 195,791.34

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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.