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Finding the Fourth Proportional to 228,504.95, 315,166.90 and 147,870.26

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Solution

The fourth proportional to 228,504.95, 315,166.90 and 147,870.26 is: 203,950.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,504.95 : 315,166.90 = 147,870.26 : x
  2. Step 2: Convert to fraction form
    228,504.95/315,166.90 = 147,870.26/x
  3. Step 3: Cross multiply
    228,504.95x = 315,166.90 × 147,870.26
  4. Step 4: Simplify right side
    228,504.95x = 46,603,810,960.02
  5. Step 5: Solve for x
    x = 46,603,810,960.02/228,504.95
  6. Step 6: Final answer
    x = 203,950.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.