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Finding the Fourth Proportional to 477,078.15, 658,368.79 and 259,288.03

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Solution

The fourth proportional to 477,078.15, 658,368.79 and 259,288.03 is: 357,818.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,078.15 : 658,368.79 = 259,288.03 : x
  2. Step 2: Convert to fraction form
    477,078.15/658,368.79 = 259,288.03/x
  3. Step 3: Cross multiply
    477,078.15x = 658,368.79 × 259,288.03
  4. Step 4: Simplify right side
    477,078.15x = 170,707,147,220.80
  5. Step 5: Solve for x
    x = 170,707,147,220.80/477,078.15
  6. Step 6: Final answer
    x = 357,818.00

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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.