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Finding the Fourth Proportional to 423,292.88, 634,455.48 and 173,666

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Solution

The fourth proportional to 423,292.88, 634,455.48 and 173,666 is: 260,300.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,292.88 : 634,455.48 = 173,666 : x
  2. Step 2: Convert to fraction form
    423,292.88/634,455.48 = 173,666/x
  3. Step 3: Cross multiply
    423,292.88x = 634,455.48 × 173,666
  4. Step 4: Simplify right side
    423,292.88x = 110,183,345,389.68
  5. Step 5: Solve for x
    x = 110,183,345,389.68/423,292.88
  6. Step 6: Final answer
    x = 260,300.49

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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.