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Finding the Fourth Proportional to 228,410.76, 342,625.74 and 70,642.20

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Solution

The fourth proportional to 228,410.76, 342,625.74 and 70,642.20 is: 105,966.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,410.76 : 342,625.74 = 70,642.20 : x
  2. Step 2: Convert to fraction form
    228,410.76/342,625.74 = 70,642.20/x
  3. Step 3: Cross multiply
    228,410.76x = 342,625.74 × 70,642.20
  4. Step 4: Simplify right side
    228,410.76x = 24,203,836,050.23
  5. Step 5: Solve for x
    x = 24,203,836,050.23/228,410.76
  6. Step 6: Final answer
    x = 105,966.27

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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.