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Finding the Fourth Proportional to 313,259.56, 432,302.34 and 170,021.32

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Solution

The fourth proportional to 313,259.56, 432,302.34 and 170,021.32 is: 234,631.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,259.56 : 432,302.34 = 170,021.32 : x
  2. Step 2: Convert to fraction form
    313,259.56/432,302.34 = 170,021.32/x
  3. Step 3: Cross multiply
    313,259.56x = 432,302.34 × 170,021.32
  4. Step 4: Simplify right side
    313,259.56x = 73,500,614,485.89
  5. Step 5: Solve for x
    x = 73,500,614,485.89/313,259.56
  6. Step 6: Final answer
    x = 234,631.67

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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.