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Finding the Fourth Proportional to 350,999.70, 526,499.55 and 209,282.10

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Solution

The fourth proportional to 350,999.70, 526,499.55 and 209,282.10 is: 313,923.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,999.70 : 526,499.55 = 209,282.10 : x
  2. Step 2: Convert to fraction form
    350,999.70/526,499.55 = 209,282.10/x
  3. Step 3: Cross multiply
    350,999.70x = 526,499.55 × 209,282.10
  4. Step 4: Simplify right side
    350,999.70x = 110,186,931,473.06
  5. Step 5: Solve for x
    x = 110,186,931,473.06/350,999.70
  6. Step 6: Final answer
    x = 313,923.15

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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.