Home / 316,685.70-436,917.78-180,621.36

Finding the Fourth Proportional to 316,685.70, 436,917.78 and 180,621.36

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Solution

The fourth proportional to 316,685.70, 436,917.78 and 180,621.36 is: 249,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,685.70 : 436,917.78 = 180,621.36 : x
  2. Step 2: Convert to fraction form
    316,685.70/436,917.78 = 180,621.36/x
  3. Step 3: Cross multiply
    316,685.70x = 436,917.78 × 180,621.36
  4. Step 4: Simplify right side
    316,685.70x = 78,916,683,631.78
  5. Step 5: Solve for x
    x = 78,916,683,631.78/316,685.70
  6. Step 6: Final answer
    x = 249,195.60

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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.