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Finding the Fourth Proportional to 285,224.10, 427,697.64 and 143,008.26

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Solution

The fourth proportional to 285,224.10, 427,697.64 and 143,008.26 is: 214,442.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,224.10 : 427,697.64 = 143,008.26 : x
  2. Step 2: Convert to fraction form
    285,224.10/427,697.64 = 143,008.26/x
  3. Step 3: Cross multiply
    285,224.10x = 427,697.64 × 143,008.26
  4. Step 4: Simplify right side
    285,224.10x = 61,164,295,302.51
  5. Step 5: Solve for x
    x = 61,164,295,302.51/285,224.10
  6. Step 6: Final answer
    x = 214,442.94

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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.