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Finding the Fourth Proportional to 343,246.80, 514,870.20 and 203,163.60

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Solution

The fourth proportional to 343,246.80, 514,870.20 and 203,163.60 is: 304,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,246.80 : 514,870.20 = 203,163.60 : x
  2. Step 2: Convert to fraction form
    343,246.80/514,870.20 = 203,163.60/x
  3. Step 3: Cross multiply
    343,246.80x = 514,870.20 × 203,163.60
  4. Step 4: Simplify right side
    343,246.80x = 104,602,883,364.72
  5. Step 5: Solve for x
    x = 104,602,883,364.72/343,246.80
  6. Step 6: Final answer
    x = 304,745.40

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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.