Home / 228,212.10-342,318.15-70,440.30

Finding the Fourth Proportional to 228,212.10, 342,318.15 and 70,440.30

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Solution

The fourth proportional to 228,212.10, 342,318.15 and 70,440.30 is: 105,660.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,212.10 : 342,318.15 = 70,440.30 : x
  2. Step 2: Convert to fraction form
    228,212.10/342,318.15 = 70,440.30/x
  3. Step 3: Cross multiply
    228,212.10x = 342,318.15 × 70,440.30
  4. Step 4: Simplify right side
    228,212.10x = 24,112,993,181.45
  5. Step 5: Solve for x
    x = 24,112,993,181.45/228,212.10
  6. Step 6: Final answer
    x = 105,660.45

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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.