Home / 380,802.74-525,513.52-208,719.35

Finding the Fourth Proportional to 380,802.74, 525,513.52 and 208,719.35

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Solution

The fourth proportional to 380,802.74, 525,513.52 and 208,719.35 is: 288,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,802.74 : 525,513.52 = 208,719.35 : x
  2. Step 2: Convert to fraction form
    380,802.74/525,513.52 = 208,719.35/x
  3. Step 3: Cross multiply
    380,802.74x = 525,513.52 × 208,719.35
  4. Step 4: Simplify right side
    380,802.74x = 109,684,839,914.62
  5. Step 5: Solve for x
    x = 109,684,839,914.62/380,802.74
  6. Step 6: Final answer
    x = 288,035.85

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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.