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Finding the Fourth Proportional to 405,130.83, 607,696.52 and 105,610.65

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Solution

The fourth proportional to 405,130.83, 607,696.52 and 105,610.65 is: 158,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,130.83 : 607,696.52 = 105,610.65 : x
  2. Step 2: Convert to fraction form
    405,130.83/607,696.52 = 105,610.65/x
  3. Step 3: Cross multiply
    405,130.83x = 607,696.52 × 105,610.65
  4. Step 4: Simplify right side
    405,130.83x = 64,179,223,951.88
  5. Step 5: Solve for x
    x = 64,179,223,951.88/405,130.83
  6. Step 6: Final answer
    x = 158,416.05

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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.