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Finding the Fourth Proportional to 351,017.80, 526,526.70 and 209,300.20

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Solution

The fourth proportional to 351,017.80, 526,526.70 and 209,300.20 is: 313,950.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,017.80 : 526,526.70 = 209,300.20 : x
  2. Step 2: Convert to fraction form
    351,017.80/526,526.70 = 209,300.20/x
  3. Step 3: Cross multiply
    351,017.80x = 526,526.70 × 209,300.20
  4. Step 4: Simplify right side
    351,017.80x = 110,202,143,615.34
  5. Step 5: Solve for x
    x = 110,202,143,615.34/351,017.80
  6. Step 6: Final answer
    x = 313,950.30

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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.