Home / 274,041.28-378,225.10-159,355.40

Finding the Fourth Proportional to 274,041.28, 378,225.10 and 159,355.40

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Solution

The fourth proportional to 274,041.28, 378,225.10 and 159,355.40 is: 219,938.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,041.28 : 378,225.10 = 159,355.40 : x
  2. Step 2: Convert to fraction form
    274,041.28/378,225.10 = 159,355.40/x
  3. Step 3: Cross multiply
    274,041.28x = 378,225.10 × 159,355.40
  4. Step 4: Simplify right side
    274,041.28x = 60,272,212,100.54
  5. Step 5: Solve for x
    x = 60,272,212,100.54/274,041.28
  6. Step 6: Final answer
    x = 219,938.44

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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.