Home / 228,271.62-315,115.72-136,423.31

Finding the Fourth Proportional to 228,271.62, 315,115.72 and 136,423.31

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Solution

The fourth proportional to 228,271.62, 315,115.72 and 136,423.31 is: 188,324.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,271.62 : 315,115.72 = 136,423.31 : x
  2. Step 2: Convert to fraction form
    228,271.62/315,115.72 = 136,423.31/x
  3. Step 3: Cross multiply
    228,271.62x = 315,115.72 × 136,423.31
  4. Step 4: Simplify right side
    228,271.62x = 42,989,127,638.80
  5. Step 5: Solve for x
    x = 42,989,127,638.80/228,271.62
  6. Step 6: Final answer
    x = 188,324.45

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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.