Home / 306,985.06-423,633-171,018.82

Finding the Fourth Proportional to 306,985.06, 423,633 and 171,018.82

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Solution

The fourth proportional to 306,985.06, 423,633 and 171,018.82 is: 236,002.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,985.06 : 423,633 = 171,018.82 : x
  2. Step 2: Convert to fraction form
    306,985.06/423,633 = 171,018.82/x
  3. Step 3: Cross multiply
    306,985.06x = 423,633 × 171,018.82
  4. Step 4: Simplify right side
    306,985.06x = 72,449,215,773.06
  5. Step 5: Solve for x
    x = 72,449,215,773.06/306,985.06
  6. Step 6: Final answer
    x = 236,002.42

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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.