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Finding the Fourth Proportional to 350,638.60, 525,612.30 and 173,000.20

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Solution

The fourth proportional to 350,638.60, 525,612.30 and 173,000.20 is: 259,329.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,638.60 : 525,612.30 = 173,000.20 : x
  2. Step 2: Convert to fraction form
    350,638.60/525,612.30 = 173,000.20/x
  3. Step 3: Cross multiply
    350,638.60x = 525,612.30 × 173,000.20
  4. Step 4: Simplify right side
    350,638.60x = 90,931,033,022.46
  5. Step 5: Solve for x
    x = 90,931,033,022.46/350,638.60
  6. Step 6: Final answer
    x = 259,329.79

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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.