Home / 316,721.70-436,967.46-180,657.36

Finding the Fourth Proportional to 316,721.70, 436,967.46 and 180,657.36

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Solution

The fourth proportional to 316,721.70, 436,967.46 and 180,657.36 is: 249,245.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,721.70 : 436,967.46 = 180,657.36 : x
  2. Step 2: Convert to fraction form
    316,721.70/436,967.46 = 180,657.36/x
  3. Step 3: Cross multiply
    316,721.70x = 436,967.46 × 180,657.36
  4. Step 4: Simplify right side
    316,721.70x = 78,941,387,729.51
  5. Step 5: Solve for x
    x = 78,941,387,729.51/316,721.70
  6. Step 6: Final answer
    x = 249,245.28

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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.