Home / 380,790.32-525,729.93-245,060.66

Finding the Fourth Proportional to 380,790.32, 525,729.93 and 245,060.66

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Solution

The fourth proportional to 380,790.32, 525,729.93 and 245,060.66 is: 338,337.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,790.32 : 525,729.93 = 245,060.66 : x
  2. Step 2: Convert to fraction form
    380,790.32/525,729.93 = 245,060.66/x
  3. Step 3: Cross multiply
    380,790.32x = 525,729.93 × 245,060.66
  4. Step 4: Simplify right side
    380,790.32x = 128,835,723,627.55
  5. Step 5: Solve for x
    x = 128,835,723,627.55/380,790.32
  6. Step 6: Final answer
    x = 338,337.71

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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.