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Finding the Fourth Proportional to 313,675.64, 432,871.50 and 170,436.20

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Solution

The fourth proportional to 313,675.64, 432,871.50 and 170,436.20 is: 235,201.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,675.64 : 432,871.50 = 170,436.20 : x
  2. Step 2: Convert to fraction form
    313,675.64/432,871.50 = 170,436.20/x
  3. Step 3: Cross multiply
    313,675.64x = 432,871.50 × 170,436.20
  4. Step 4: Simplify right side
    313,675.64x = 73,776,973,548.30
  5. Step 5: Solve for x
    x = 73,776,973,548.30/313,675.64
  6. Step 6: Final answer
    x = 235,201.48

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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.