Home / 380,411.49-524,961.42-210,641.97

Finding the Fourth Proportional to 380,411.49, 524,961.42 and 210,641.97

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Solution

The fourth proportional to 380,411.49, 524,961.42 and 210,641.97 is: 290,682.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,411.49 : 524,961.42 = 210,641.97 : x
  2. Step 2: Convert to fraction form
    380,411.49/524,961.42 = 210,641.97/x
  3. Step 3: Cross multiply
    380,411.49x = 524,961.42 × 210,641.97
  4. Step 4: Simplify right side
    380,411.49x = 110,578,905,057.99
  5. Step 5: Solve for x
    x = 110,578,905,057.99/380,411.49
  6. Step 6: Final answer
    x = 290,682.35

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1.5x scale

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.