Home / 316,238.89-436,420.01-180,270.36

Finding the Fourth Proportional to 316,238.89, 436,420.01 and 180,270.36

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Solution

The fourth proportional to 316,238.89, 436,420.01 and 180,270.36 is: 248,778.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,238.89 : 436,420.01 = 180,270.36 : x
  2. Step 2: Convert to fraction form
    316,238.89/436,420.01 = 180,270.36/x
  3. Step 3: Cross multiply
    316,238.89x = 436,420.01 × 180,270.36
  4. Step 4: Simplify right side
    316,238.89x = 78,673,592,313.90
  5. Step 5: Solve for x
    x = 78,673,592,313.90/316,238.89
  6. Step 6: Final answer
    x = 248,778.99

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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.