Home / 315,788.07-435,787.65-170,593.92

Finding the Fourth Proportional to 315,788.07, 435,787.65 and 170,593.92

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Solution

The fourth proportional to 315,788.07, 435,787.65 and 170,593.92 is: 235,419.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,788.07 : 435,787.65 = 170,593.92 : x
  2. Step 2: Convert to fraction form
    315,788.07/435,787.65 = 170,593.92/x
  3. Step 3: Cross multiply
    315,788.07x = 435,787.65 × 170,593.92
  4. Step 4: Simplify right side
    315,788.07x = 74,342,723,501.09
  5. Step 5: Solve for x
    x = 74,342,723,501.09/315,788.07
  6. Step 6: Final answer
    x = 235,419.67

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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.