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Finding the Fourth Proportional to 338,163.40, 507,206.70 and 88,870.60

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Solution

The fourth proportional to 338,163.40, 507,206.70 and 88,870.60 is: 133,295.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,163.40 : 507,206.70 = 88,870.60 : x
  2. Step 2: Convert to fraction form
    338,163.40/507,206.70 = 88,870.60/x
  3. Step 3: Cross multiply
    338,163.40x = 507,206.70 × 88,870.60
  4. Step 4: Simplify right side
    338,163.40x = 45,075,763,753.02
  5. Step 5: Solve for x
    x = 45,075,763,753.02/338,163.40
  6. Step 6: Final answer
    x = 133,295.81

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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.