Home / 380,562.87-525,154.23-208,446.51

Finding the Fourth Proportional to 380,562.87, 525,154.23 and 208,446.51

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Solution

The fourth proportional to 380,562.87, 525,154.23 and 208,446.51 is: 287,643.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,562.87 : 525,154.23 = 208,446.51 : x
  2. Step 2: Convert to fraction form
    380,562.87/525,154.23 = 208,446.51/x
  3. Step 3: Cross multiply
    380,562.87x = 525,154.23 × 208,446.51
  4. Step 4: Simplify right side
    380,562.87x = 109,466,566,455.24
  5. Step 5: Solve for x
    x = 109,466,566,455.24/380,562.87
  6. Step 6: Final answer
    x = 287,643.84

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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.