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Finding the Fourth Proportional to 353,507, 487,758.84 and 200,508.62

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Solution

The fourth proportional to 353,507, 487,758.84 and 200,508.62 is: 276,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,507 : 487,758.84 = 200,508.62 : x
  2. Step 2: Convert to fraction form
    353,507/487,758.84 = 200,508.62/x
  3. Step 3: Cross multiply
    353,507x = 487,758.84 × 200,508.62
  4. Step 4: Simplify right side
    353,507x = 97,799,851,901.20
  5. Step 5: Solve for x
    x = 97,799,851,901.20/353,507
  6. Step 6: Final answer
    x = 276,656.05

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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.