Home / 380,403.05-524,972.03-210,637.17

Finding the Fourth Proportional to 380,403.05, 524,972.03 and 210,637.17

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Solution

The fourth proportional to 380,403.05, 524,972.03 and 210,637.17 is: 290,688.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,403.05 : 524,972.03 = 210,637.17 : x
  2. Step 2: Convert to fraction form
    380,403.05/524,972.03 = 210,637.17/x
  3. Step 3: Cross multiply
    380,403.05x = 524,972.03 × 210,637.17
  4. Step 4: Simplify right side
    380,403.05x = 110,578,621,675.17
  5. Step 5: Solve for x
    x = 110,578,621,675.17/380,403.05
  6. Step 6: Final answer
    x = 290,688.06

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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.