Home / 305,432.45-421,476.72-169,466.03

Finding the Fourth Proportional to 305,432.45, 421,476.72 and 169,466.03

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Solution

The fourth proportional to 305,432.45, 421,476.72 and 169,466.03 is: 233,851.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,432.45 : 421,476.72 = 169,466.03 : x
  2. Step 2: Convert to fraction form
    305,432.45/421,476.72 = 169,466.03/x
  3. Step 3: Cross multiply
    305,432.45x = 421,476.72 × 169,466.03
  4. Step 4: Simplify right side
    305,432.45x = 71,425,986,475.82
  5. Step 5: Solve for x
    x = 71,425,986,475.82/305,432.45
  6. Step 6: Final answer
    x = 233,851.99

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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.