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Finding the Fourth Proportional to 262,081.98, 361,648.13 and 153,211.80

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Solution

The fourth proportional to 262,081.98, 361,648.13 and 153,211.80 is: 211,417.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,081.98 : 361,648.13 = 153,211.80 : x
  2. Step 2: Convert to fraction form
    262,081.98/361,648.13 = 153,211.80/x
  3. Step 3: Cross multiply
    262,081.98x = 361,648.13 × 153,211.80
  4. Step 4: Simplify right side
    262,081.98x = 55,408,761,554.06
  5. Step 5: Solve for x
    x = 55,408,761,554.06/262,081.98
  6. Step 6: Final answer
    x = 211,417.67

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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.