Home / 301,580.15-449,064.63-290,803.68

Finding the Fourth Proportional to 301,580.15, 449,064.63 and 290,803.68

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Solution

The fourth proportional to 301,580.15, 449,064.63 and 290,803.68 is: 433,018.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,580.15 : 449,064.63 = 290,803.68 : x
  2. Step 2: Convert to fraction form
    301,580.15/449,064.63 = 290,803.68/x
  3. Step 3: Cross multiply
    301,580.15x = 449,064.63 × 290,803.68
  4. Step 4: Simplify right side
    301,580.15x = 130,589,646,961.84
  5. Step 5: Solve for x
    x = 130,589,646,961.84/301,580.15
  6. Step 6: Final answer
    x = 433,018.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.