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Finding the Fourth Proportional to 339,403.04, 509,096.68 and 170,878.11

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Solution

The fourth proportional to 339,403.04, 509,096.68 and 170,878.11 is: 256,313.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,403.04 : 509,096.68 = 170,878.11 : x
  2. Step 2: Convert to fraction form
    339,403.04/509,096.68 = 170,878.11/x
  3. Step 3: Cross multiply
    339,403.04x = 509,096.68 × 170,878.11
  4. Step 4: Simplify right side
    339,403.04x = 86,993,480,444.87
  5. Step 5: Solve for x
    x = 86,993,480,444.87/339,403.04
  6. Step 6: Final answer
    x = 256,313.21

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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.