Home / 345,719.40-477,111.24-202,490.34

Finding the Fourth Proportional to 345,719.40, 477,111.24 and 202,490.34

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Solution

The fourth proportional to 345,719.40, 477,111.24 and 202,490.34 is: 279,447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,719.40 : 477,111.24 = 202,490.34 : x
  2. Step 2: Convert to fraction form
    345,719.40/477,111.24 = 202,490.34/x
  3. Step 3: Cross multiply
    345,719.40x = 477,111.24 × 202,490.34
  4. Step 4: Simplify right side
    345,719.40x = 96,610,417,205.42
  5. Step 5: Solve for x
    x = 96,610,417,205.42/345,719.40
  6. Step 6: Final answer
    x = 279,447.49

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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.