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Finding the Fourth Proportional to 381,567.70, 526,588.32 and 220,429.54

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Solution

The fourth proportional to 381,567.70, 526,588.32 and 220,429.54 is: 304,207.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,567.70 : 526,588.32 = 220,429.54 : x
  2. Step 2: Convert to fraction form
    381,567.70/526,588.32 = 220,429.54/x
  3. Step 3: Cross multiply
    381,567.70x = 526,588.32 × 220,429.54
  4. Step 4: Simplify right side
    381,567.70x = 116,075,621,146.97
  5. Step 5: Solve for x
    x = 116,075,621,146.97/381,567.70
  6. Step 6: Final answer
    x = 304,207.15

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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.