Home / 380,984.52-525,729.90-208,875

Finding the Fourth Proportional to 380,984.52, 525,729.90 and 208,875

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Solution

The fourth proportional to 380,984.52, 525,729.90 and 208,875 is: 288,231.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,984.52 : 525,729.90 = 208,875 : x
  2. Step 2: Convert to fraction form
    380,984.52/525,729.90 = 208,875/x
  3. Step 3: Cross multiply
    380,984.52x = 525,729.90 × 208,875
  4. Step 4: Simplify right side
    380,984.52x = 109,811,832,862.50
  5. Step 5: Solve for x
    x = 109,811,832,862.50/380,984.52
  6. Step 6: Final answer
    x = 288,231.74

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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.