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Finding the Fourth Proportional to 308,762.83, 426,083.53 and 170,947.89

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Solution

The fourth proportional to 308,762.83, 426,083.53 and 170,947.89 is: 235,903.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,762.83 : 426,083.53 = 170,947.89 : x
  2. Step 2: Convert to fraction form
    308,762.83/426,083.53 = 170,947.89/x
  3. Step 3: Cross multiply
    308,762.83x = 426,083.53 × 170,947.89
  4. Step 4: Simplify right side
    308,762.83x = 72,838,080,417.25
  5. Step 5: Solve for x
    x = 72,838,080,417.25/308,762.83
  6. Step 6: Final answer
    x = 235,903.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.