Home / 356,089.58-491,325.05-210,823.23

Finding the Fourth Proportional to 356,089.58, 491,325.05 and 210,823.23

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Solution

The fourth proportional to 356,089.58, 491,325.05 and 210,823.23 is: 290,889.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,089.58 : 491,325.05 = 210,823.23 : x
  2. Step 2: Convert to fraction form
    356,089.58/491,325.05 = 210,823.23/x
  3. Step 3: Cross multiply
    356,089.58x = 491,325.05 × 210,823.23
  4. Step 4: Simplify right side
    356,089.58x = 103,582,734,547.97
  5. Step 5: Solve for x
    x = 103,582,734,547.97/356,089.58
  6. Step 6: Final answer
    x = 290,889.55

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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.