Home / 419,129.60-578,382.75-237,830.72

Finding the Fourth Proportional to 419,129.60, 578,382.75 and 237,830.72

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Solution

The fourth proportional to 419,129.60, 578,382.75 and 237,830.72 is: 328,197.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,129.60 : 578,382.75 = 237,830.72 : x
  2. Step 2: Convert to fraction form
    419,129.60/578,382.75 = 237,830.72/x
  3. Step 3: Cross multiply
    419,129.60x = 578,382.75 × 237,830.72
  4. Step 4: Simplify right side
    419,129.60x = 137,557,182,976.17
  5. Step 5: Solve for x
    x = 137,557,182,976.17/419,129.60
  6. Step 6: Final answer
    x = 328,197.26

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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.