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Finding the Fourth Proportional to 380,371.68, 524,929.32 and 210,605.82

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Solution

The fourth proportional to 380,371.68, 524,929.32 and 210,605.82 is: 290,645.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,371.68 : 524,929.32 = 210,605.82 : x
  2. Step 2: Convert to fraction form
    380,371.68/524,929.32 = 210,605.82/x
  3. Step 3: Cross multiply
    380,371.68x = 524,929.32 × 210,605.82
  4. Step 4: Simplify right side
    380,371.68x = 110,553,169,880.64
  5. Step 5: Solve for x
    x = 110,553,169,880.64/380,371.68
  6. Step 6: Final answer
    x = 290,645.11

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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.