Home / 316,670.49-436,989.06-173,402.85

Finding the Fourth Proportional to 316,670.49, 436,989.06 and 173,402.85

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Solution

The fourth proportional to 316,670.49, 436,989.06 and 173,402.85 is: 239,287.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,670.49 : 436,989.06 = 173,402.85 : x
  2. Step 2: Convert to fraction form
    316,670.49/436,989.06 = 173,402.85/x
  3. Step 3: Cross multiply
    316,670.49x = 436,989.06 × 173,402.85
  4. Step 4: Simplify right side
    316,670.49x = 75,775,148,422.82
  5. Step 5: Solve for x
    x = 75,775,148,422.82/316,670.49
  6. Step 6: Final answer
    x = 239,287.05

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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.