Home / 430,582.26-645,906.51-131,088.54

Finding the Fourth Proportional to 430,582.26, 645,906.51 and 131,088.54

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Solution

The fourth proportional to 430,582.26, 645,906.51 and 131,088.54 is: 196,642.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,582.26 : 645,906.51 = 131,088.54 : x
  2. Step 2: Convert to fraction form
    430,582.26/645,906.51 = 131,088.54/x
  3. Step 3: Cross multiply
    430,582.26x = 645,906.51 × 131,088.54
  4. Step 4: Simplify right side
    430,582.26x = 84,670,941,372.40
  5. Step 5: Solve for x
    x = 84,670,941,372.40/430,582.26
  6. Step 6: Final answer
    x = 196,642.89

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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.