Home / 430,179.01-645,226.47-130,662.19

Finding the Fourth Proportional to 430,179.01, 645,226.47 and 130,662.19

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Solution

The fourth proportional to 430,179.01, 645,226.47 and 130,662.19 is: 195,980.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,179.01 : 645,226.47 = 130,662.19 : x
  2. Step 2: Convert to fraction form
    430,179.01/645,226.47 = 130,662.19/x
  3. Step 3: Cross multiply
    430,179.01x = 645,226.47 × 130,662.19
  4. Step 4: Simplify right side
    430,179.01x = 84,306,702,003.10
  5. Step 5: Solve for x
    x = 84,306,702,003.10/430,179.01
  6. Step 6: Final answer
    x = 195,980.51

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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.