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Finding the Fourth Proportional to 228,679.70, 343,019.55 and 70,924.10

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Solution

The fourth proportional to 228,679.70, 343,019.55 and 70,924.10 is: 106,386.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,679.70 : 343,019.55 = 70,924.10 : x
  2. Step 2: Convert to fraction form
    228,679.70/343,019.55 = 70,924.10/x
  3. Step 3: Cross multiply
    228,679.70x = 343,019.55 × 70,924.10
  4. Step 4: Simplify right side
    228,679.70x = 24,328,352,866.16
  5. Step 5: Solve for x
    x = 24,328,352,866.16/228,679.70
  6. Step 6: Final answer
    x = 106,386.15

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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.