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Finding the Fourth Proportional to 283,058.89, 390,455.40 and 181,047.13

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Solution

The fourth proportional to 283,058.89, 390,455.40 and 181,047.13 is: 249,738.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,058.89 : 390,455.40 = 181,047.13 : x
  2. Step 2: Convert to fraction form
    283,058.89/390,455.40 = 181,047.13/x
  3. Step 3: Cross multiply
    283,058.89x = 390,455.40 × 181,047.13
  4. Step 4: Simplify right side
    283,058.89x = 70,690,829,563.00
  5. Step 5: Solve for x
    x = 70,690,829,563.00/283,058.89
  6. Step 6: Final answer
    x = 249,738.95

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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.