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Finding the Fourth Proportional to 423,357.52, 634,870.24 and 170,590.80

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Solution

The fourth proportional to 423,357.52, 634,870.24 and 170,590.80 is: 255,819.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,357.52 : 634,870.24 = 170,590.80 : x
  2. Step 2: Convert to fraction form
    423,357.52/634,870.24 = 170,590.80/x
  3. Step 3: Cross multiply
    423,357.52x = 634,870.24 × 170,590.80
  4. Step 4: Simplify right side
    423,357.52x = 108,303,022,137.79
  5. Step 5: Solve for x
    x = 108,303,022,137.79/423,357.52
  6. Step 6: Final answer
    x = 255,819.29

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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.