Home / 236,855.40-355,167.81-79,030.50

Finding the Fourth Proportional to 236,855.40, 355,167.81 and 79,030.50

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Solution

The fourth proportional to 236,855.40, 355,167.81 and 79,030.50 is: 118,507.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,855.40 : 355,167.81 = 79,030.50 : x
  2. Step 2: Convert to fraction form
    236,855.40/355,167.81 = 79,030.50/x
  3. Step 3: Cross multiply
    236,855.40x = 355,167.81 × 79,030.50
  4. Step 4: Simplify right side
    236,855.40x = 28,069,089,608.21
  5. Step 5: Solve for x
    x = 28,069,089,608.21/236,855.40
  6. Step 6: Final answer
    x = 118,507.28

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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.