Home / 309,860.02-427,581.75-173,875.06

Finding the Fourth Proportional to 309,860.02, 427,581.75 and 173,875.06

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Solution

The fourth proportional to 309,860.02, 427,581.75 and 173,875.06 is: 239,933.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,860.02 : 427,581.75 = 173,875.06 : x
  2. Step 2: Convert to fraction form
    309,860.02/427,581.75 = 173,875.06/x
  3. Step 3: Cross multiply
    309,860.02x = 427,581.75 × 173,875.06
  4. Step 4: Simplify right side
    309,860.02x = 74,345,802,436.16
  5. Step 5: Solve for x
    x = 74,345,802,436.16/309,860.02
  6. Step 6: Final answer
    x = 239,933.51

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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.