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Finding the Fourth Proportional to 228,630.30, 342,945.45 and 70,907.10

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Solution

The fourth proportional to 228,630.30, 342,945.45 and 70,907.10 is: 106,360.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,630.30 : 342,945.45 = 70,907.10 : x
  2. Step 2: Convert to fraction form
    228,630.30/342,945.45 = 70,907.10/x
  3. Step 3: Cross multiply
    228,630.30x = 342,945.45 × 70,907.10
  4. Step 4: Simplify right side
    228,630.30x = 24,317,267,317.70
  5. Step 5: Solve for x
    x = 24,317,267,317.70/228,630.30
  6. Step 6: Final answer
    x = 106,360.65

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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.