Home / 380,509.29-525,082.51-208,418.36

Finding the Fourth Proportional to 380,509.29, 525,082.51 and 208,418.36

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Solution

The fourth proportional to 380,509.29, 525,082.51 and 208,418.36 is: 287,606.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,509.29 : 525,082.51 = 208,418.36 : x
  2. Step 2: Convert to fraction form
    380,509.29/525,082.51 = 208,418.36/x
  3. Step 3: Cross multiply
    380,509.29x = 525,082.51 × 208,418.36
  4. Step 4: Simplify right side
    380,509.29x = 109,436,835,598.88
  5. Step 5: Solve for x
    x = 109,436,835,598.88/380,509.29
  6. Step 6: Final answer
    x = 287,606.21

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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.