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Finding the Fourth Proportional to 353,145.60, 529,724.16 and 103,852.80

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Solution

The fourth proportional to 353,145.60, 529,724.16 and 103,852.80 is: 155,780.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,145.60 : 529,724.16 = 103,852.80 : x
  2. Step 2: Convert to fraction form
    353,145.60/529,724.16 = 103,852.80/x
  3. Step 3: Cross multiply
    353,145.60x = 529,724.16 × 103,852.80
  4. Step 4: Simplify right side
    353,145.60x = 55,013,337,243.65
  5. Step 5: Solve for x
    x = 55,013,337,243.65/353,145.60
  6. Step 6: Final answer
    x = 155,780.89

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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.