Home / 380,824.48-525,417.64-219,657.92

Finding the Fourth Proportional to 380,824.48, 525,417.64 and 219,657.92

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Solution

The fourth proportional to 380,824.48, 525,417.64 and 219,657.92 is: 303,058.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,824.48 : 525,417.64 = 219,657.92 : x
  2. Step 2: Convert to fraction form
    380,824.48/525,417.64 = 219,657.92/x
  3. Step 3: Cross multiply
    380,824.48x = 525,417.64 × 219,657.92
  4. Step 4: Simplify right side
    380,824.48x = 115,412,145,933.71
  5. Step 5: Solve for x
    x = 115,412,145,933.71/380,824.48
  6. Step 6: Final answer
    x = 303,058.63

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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.