Home / 210,459.47-290,440.43-114,972.32

Finding the Fourth Proportional to 210,459.47, 290,440.43 and 114,972.32

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Solution

The fourth proportional to 210,459.47, 290,440.43 and 114,972.32 is: 158,665.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,459.47 : 290,440.43 = 114,972.32 : x
  2. Step 2: Convert to fraction form
    210,459.47/290,440.43 = 114,972.32/x
  3. Step 3: Cross multiply
    210,459.47x = 290,440.43 × 114,972.32
  4. Step 4: Simplify right side
    210,459.47x = 33,392,610,058.90
  5. Step 5: Solve for x
    x = 33,392,610,058.90/210,459.47
  6. Step 6: Final answer
    x = 158,665.28

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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.