Home / 305,422.02-421,474.50-169,455.42

Finding the Fourth Proportional to 305,422.02, 421,474.50 and 169,455.42

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Solution

The fourth proportional to 305,422.02, 421,474.50 and 169,455.42 is: 233,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,422.02 : 421,474.50 = 169,455.42 : x
  2. Step 2: Convert to fraction form
    305,422.02/421,474.50 = 169,455.42/x
  3. Step 3: Cross multiply
    305,422.02x = 421,474.50 × 169,455.42
  4. Step 4: Simplify right side
    305,422.02x = 71,421,138,416.79
  5. Step 5: Solve for x
    x = 71,421,138,416.79/305,422.02
  6. Step 6: Final answer
    x = 233,844.10

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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.