Home / 346,383.08-478,018.02-210,385.84

Finding the Fourth Proportional to 346,383.08, 478,018.02 and 210,385.84

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Solution

The fourth proportional to 346,383.08, 478,018.02 and 210,385.84 is: 290,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,383.08 : 478,018.02 = 210,385.84 : x
  2. Step 2: Convert to fraction form
    346,383.08/478,018.02 = 210,385.84/x
  3. Step 3: Cross multiply
    346,383.08x = 478,018.02 × 210,385.84
  4. Step 4: Simplify right side
    346,383.08x = 100,568,222,672.84
  5. Step 5: Solve for x
    x = 100,568,222,672.84/346,383.08
  6. Step 6: Final answer
    x = 290,338.15

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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.