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Finding the Fourth Proportional to 434,051.70, 650,858.85 and 256,613.10

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Solution

The fourth proportional to 434,051.70, 650,858.85 and 256,613.10 is: 384,790.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,051.70 : 650,858.85 = 256,613.10 : x
  2. Step 2: Convert to fraction form
    434,051.70/650,858.85 = 256,613.10/x
  3. Step 3: Cross multiply
    434,051.70x = 650,858.85 × 256,613.10
  4. Step 4: Simplify right side
    434,051.70x = 167,018,907,160.94
  5. Step 5: Solve for x
    x = 167,018,907,160.94/434,051.70
  6. Step 6: Final answer
    x = 384,790.35

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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.