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Finding the Fourth Proportional to 353,267.68, 529,901.52 and 205,420

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Solution

The fourth proportional to 353,267.68, 529,901.52 and 205,420 is: 308,130.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,267.68 : 529,901.52 = 205,420 : x
  2. Step 2: Convert to fraction form
    353,267.68/529,901.52 = 205,420/x
  3. Step 3: Cross multiply
    353,267.68x = 529,901.52 × 205,420
  4. Step 4: Simplify right side
    353,267.68x = 108,852,370,238.40
  5. Step 5: Solve for x
    x = 108,852,370,238.40/353,267.68
  6. Step 6: Final answer
    x = 308,130.00

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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.