Home / 403,623.54-557,003.32-231,549.01

Finding the Fourth Proportional to 403,623.54, 557,003.32 and 231,549.01

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Solution

The fourth proportional to 403,623.54, 557,003.32 and 231,549.01 is: 319,539.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,623.54 : 557,003.32 = 231,549.01 : x
  2. Step 2: Convert to fraction form
    403,623.54/557,003.32 = 231,549.01/x
  3. Step 3: Cross multiply
    403,623.54x = 557,003.32 × 231,549.01
  4. Step 4: Simplify right side
    403,623.54x = 128,973,567,312.71
  5. Step 5: Solve for x
    x = 128,973,567,312.71/403,623.54
  6. Step 6: Final answer
    x = 319,539.26

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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.