Home / 380,628.32-525,266.81-208,557.43

Finding the Fourth Proportional to 380,628.32, 525,266.81 and 208,557.43

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Solution

The fourth proportional to 380,628.32, 525,266.81 and 208,557.43 is: 287,809.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,628.32 : 525,266.81 = 208,557.43 : x
  2. Step 2: Convert to fraction form
    380,628.32/525,266.81 = 208,557.43/x
  3. Step 3: Cross multiply
    380,628.32x = 525,266.81 × 208,557.43
  4. Step 4: Simplify right side
    380,628.32x = 109,548,295,166.13
  5. Step 5: Solve for x
    x = 109,548,295,166.13/380,628.32
  6. Step 6: Final answer
    x = 287,809.11

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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.