Home / 430,164.15-645,332.36-240,893.69

Finding the Fourth Proportional to 430,164.15, 645,332.36 and 240,893.69

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Solution

The fourth proportional to 430,164.15, 645,332.36 and 240,893.69 is: 361,388.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,164.15 : 645,332.36 = 240,893.69 : x
  2. Step 2: Convert to fraction form
    430,164.15/645,332.36 = 240,893.69/x
  3. Step 3: Cross multiply
    430,164.15x = 645,332.36 × 240,893.69
  4. Step 4: Simplify right side
    430,164.15x = 155,456,489,045.68
  5. Step 5: Solve for x
    x = 155,456,489,045.68/430,164.15
  6. Step 6: Final answer
    x = 361,388.76

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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.