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Finding the Fourth Proportional to 300,130.31, 413,774.51 and 192,513.51

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Solution

The fourth proportional to 300,130.31, 413,774.51 and 192,513.51 is: 265,408.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,130.31 : 413,774.51 = 192,513.51 : x
  2. Step 2: Convert to fraction form
    300,130.31/413,774.51 = 192,513.51/x
  3. Step 3: Cross multiply
    300,130.31x = 413,774.51 × 192,513.51
  4. Step 4: Simplify right side
    300,130.31x = 79,657,180,237.19
  5. Step 5: Solve for x
    x = 79,657,180,237.19/300,130.31
  6. Step 6: Final answer
    x = 265,408.65

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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.