Home / 378,317.21-522,223.47-277,146.20

Finding the Fourth Proportional to 378,317.21, 522,223.47 and 277,146.20

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Solution

The fourth proportional to 378,317.21, 522,223.47 and 277,146.20 is: 382,568.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,317.21 : 522,223.47 = 277,146.20 : x
  2. Step 2: Convert to fraction form
    378,317.21/522,223.47 = 277,146.20/x
  3. Step 3: Cross multiply
    378,317.21x = 522,223.47 × 277,146.20
  4. Step 4: Simplify right side
    378,317.21x = 144,732,251,566.87
  5. Step 5: Solve for x
    x = 144,732,251,566.87/378,317.21
  6. Step 6: Final answer
    x = 382,568.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.