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Finding the Fourth Proportional to 303,058.47, 418,400.10 and 269,431.59

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Solution

The fourth proportional to 303,058.47, 418,400.10 and 269,431.59 is: 371,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,058.47 : 418,400.10 = 269,431.59 : x
  2. Step 2: Convert to fraction form
    303,058.47/418,400.10 = 269,431.59/x
  3. Step 3: Cross multiply
    303,058.47x = 418,400.10 × 269,431.59
  4. Step 4: Simplify right side
    303,058.47x = 112,730,204,199.16
  5. Step 5: Solve for x
    x = 112,730,204,199.16/303,058.47
  6. Step 6: Final answer
    x = 371,975.10

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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.