Home / 380,975.86-525,748.13-208,896.49

Finding the Fourth Proportional to 380,975.86, 525,748.13 and 208,896.49

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Solution

The fourth proportional to 380,975.86, 525,748.13 and 208,896.49 is: 288,277.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,975.86 : 525,748.13 = 208,896.49 : x
  2. Step 2: Convert to fraction form
    380,975.86/525,748.13 = 208,896.49/x
  3. Step 3: Cross multiply
    380,975.86x = 525,748.13 × 208,896.49
  4. Step 4: Simplify right side
    380,975.86x = 109,826,938,981.06
  5. Step 5: Solve for x
    x = 109,826,938,981.06/380,975.86
  6. Step 6: Final answer
    x = 288,277.95

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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.