Home / 305,308.02-421,322.28-169,342.23

Finding the Fourth Proportional to 305,308.02, 421,322.28 and 169,342.23

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Solution

The fourth proportional to 305,308.02, 421,322.28 and 169,342.23 is: 233,690.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,308.02 : 421,322.28 = 169,342.23 : x
  2. Step 2: Convert to fraction form
    305,308.02/421,322.28 = 169,342.23/x
  3. Step 3: Cross multiply
    305,308.02x = 421,322.28 × 169,342.23
  4. Step 4: Simplify right side
    305,308.02x = 71,347,654,443.88
  5. Step 5: Solve for x
    x = 71,347,654,443.88/305,308.02
  6. Step 6: Final answer
    x = 233,690.73

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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.