Home / 315,209.44-434,986.96-179,243.40

Finding the Fourth Proportional to 315,209.44, 434,986.96 and 179,243.40

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Solution

The fourth proportional to 315,209.44, 434,986.96 and 179,243.40 is: 247,354.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,209.44 : 434,986.96 = 179,243.40 : x
  2. Step 2: Convert to fraction form
    315,209.44/434,986.96 = 179,243.40/x
  3. Step 3: Cross multiply
    315,209.44x = 434,986.96 × 179,243.40
  4. Step 4: Simplify right side
    315,209.44x = 77,968,541,666.06
  5. Step 5: Solve for x
    x = 77,968,541,666.06/315,209.44
  6. Step 6: Final answer
    x = 247,354.72

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1.5x scale

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.