Home / 402,123.02-554,930.26-220,846.64

Finding the Fourth Proportional to 402,123.02, 554,930.26 and 220,846.64

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Solution

The fourth proportional to 402,123.02, 554,930.26 and 220,846.64 is: 304,768.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,123.02 : 554,930.26 = 220,846.64 : x
  2. Step 2: Convert to fraction form
    402,123.02/554,930.26 = 220,846.64/x
  3. Step 3: Cross multiply
    402,123.02x = 554,930.26 × 220,846.64
  4. Step 4: Simplify right side
    402,123.02x = 122,554,480,028.56
  5. Step 5: Solve for x
    x = 122,554,480,028.56/402,123.02
  6. Step 6: Final answer
    x = 304,768.63

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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.