Home / 353,552.45-487,817.03-208,364.20

Finding the Fourth Proportional to 353,552.45, 487,817.03 and 208,364.20

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Solution

The fourth proportional to 353,552.45, 487,817.03 and 208,364.20 is: 287,492.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,552.45 : 487,817.03 = 208,364.20 : x
  2. Step 2: Convert to fraction form
    353,552.45/487,817.03 = 208,364.20/x
  3. Step 3: Cross multiply
    353,552.45x = 487,817.03 × 208,364.20
  4. Step 4: Simplify right side
    353,552.45x = 101,643,604,503.69
  5. Step 5: Solve for x
    x = 101,643,604,503.69/353,552.45
  6. Step 6: Final answer
    x = 287,492.30

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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.