Home / 353,376.04-487,548.84-200,402.20

Finding the Fourth Proportional to 353,376.04, 487,548.84 and 200,402.20

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Solution

The fourth proportional to 353,376.04, 487,548.84 and 200,402.20 is: 276,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,376.04 : 487,548.84 = 200,402.20 : x
  2. Step 2: Convert to fraction form
    353,376.04/487,548.84 = 200,402.20/x
  3. Step 3: Cross multiply
    353,376.04x = 487,548.84 × 200,402.20
  4. Step 4: Simplify right side
    353,376.04x = 97,705,860,143.45
  5. Step 5: Solve for x
    x = 97,705,860,143.45/353,376.04
  6. Step 6: Final answer
    x = 276,492.60

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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.