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Finding the Fourth Proportional to 353,043, 529,564.50 and 103,725

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Solution

The fourth proportional to 353,043, 529,564.50 and 103,725 is: 155,587.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,043 : 529,564.50 = 103,725 : x
  2. Step 2: Convert to fraction form
    353,043/529,564.50 = 103,725/x
  3. Step 3: Cross multiply
    353,043x = 529,564.50 × 103,725
  4. Step 4: Simplify right side
    353,043x = 54,929,077,762.50
  5. Step 5: Solve for x
    x = 54,929,077,762.50/353,043
  6. Step 6: Final answer
    x = 155,587.50

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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.