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Finding the Fourth Proportional to 353,145.90, 529,718.85 and 220,176.30

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Solution

The fourth proportional to 353,145.90, 529,718.85 and 220,176.30 is: 330,264.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,145.90 : 529,718.85 = 220,176.30 : x
  2. Step 2: Convert to fraction form
    353,145.90/529,718.85 = 220,176.30/x
  3. Step 3: Cross multiply
    353,145.90x = 529,718.85 × 220,176.30
  4. Step 4: Simplify right side
    353,145.90x = 116,631,536,433.26
  5. Step 5: Solve for x
    x = 116,631,536,433.26/353,145.90
  6. Step 6: Final answer
    x = 330,264.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.