Home / 380,931.99-525,692.07-208,865.64

Finding the Fourth Proportional to 380,931.99, 525,692.07 and 208,865.64

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Solution

The fourth proportional to 380,931.99, 525,692.07 and 208,865.64 is: 288,237.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,931.99 : 525,692.07 = 208,865.64 : x
  2. Step 2: Convert to fraction form
    380,931.99/525,692.07 = 208,865.64/x
  3. Step 3: Cross multiply
    380,931.99x = 525,692.07 × 208,865.64
  4. Step 4: Simplify right side
    380,931.99x = 109,799,010,643.48
  5. Step 5: Solve for x
    x = 109,799,010,643.48/380,931.99
  6. Step 6: Final answer
    x = 288,237.83

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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.