Home / 308,784.10-426,041.06-177,929.56

Finding the Fourth Proportional to 308,784.10, 426,041.06 and 177,929.56

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Solution

The fourth proportional to 308,784.10, 426,041.06 and 177,929.56 is: 245,496.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,784.10 : 426,041.06 = 177,929.56 : x
  2. Step 2: Convert to fraction form
    308,784.10/426,041.06 = 177,929.56/x
  3. Step 3: Cross multiply
    308,784.10x = 426,041.06 × 177,929.56
  4. Step 4: Simplify right side
    308,784.10x = 75,805,296,837.81
  5. Step 5: Solve for x
    x = 75,805,296,837.81/308,784.10
  6. Step 6: Final answer
    x = 245,496.12

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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.