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Finding the Fourth Proportional to 339,315, 508,888.40 and 114,670.40

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Solution

The fourth proportional to 339,315, 508,888.40 and 114,670.40 is: 171,977.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,315 : 508,888.40 = 114,670.40 : x
  2. Step 2: Convert to fraction form
    339,315/508,888.40 = 114,670.40/x
  3. Step 3: Cross multiply
    339,315x = 508,888.40 × 114,670.40
  4. Step 4: Simplify right side
    339,315x = 58,354,436,383.36
  5. Step 5: Solve for x
    x = 58,354,436,383.36/339,315
  6. Step 6: Final answer
    x = 171,977.18

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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.