Home / 242,916.37-334,970.23-209,039.74

Finding the Fourth Proportional to 242,916.37, 334,970.23 and 209,039.74

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Solution

The fourth proportional to 242,916.37, 334,970.23 and 209,039.74 is: 288,255.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,916.37 : 334,970.23 = 209,039.74 : x
  2. Step 2: Convert to fraction form
    242,916.37/334,970.23 = 209,039.74/x
  3. Step 3: Cross multiply
    242,916.37x = 334,970.23 × 209,039.74
  4. Step 4: Simplify right side
    242,916.37x = 70,022,089,786.94
  5. Step 5: Solve for x
    x = 70,022,089,786.94/242,916.37
  6. Step 6: Final answer
    x = 288,255.95

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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.