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Finding the Fourth Proportional to 473,255.90, 653,016.11 and 279,636.69

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Solution

The fourth proportional to 473,255.90, 653,016.11 and 279,636.69 is: 385,853.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,255.90 : 653,016.11 = 279,636.69 : x
  2. Step 2: Convert to fraction form
    473,255.90/653,016.11 = 279,636.69/x
  3. Step 3: Cross multiply
    473,255.90x = 653,016.11 × 279,636.69
  4. Step 4: Simplify right side
    473,255.90x = 182,607,258,853.81
  5. Step 5: Solve for x
    x = 182,607,258,853.81/473,255.90
  6. Step 6: Final answer
    x = 385,853.11

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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.