Home / 274,437.13-378,547.50-220,119.63

Finding the Fourth Proportional to 274,437.13, 378,547.50 and 220,119.63

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Solution

The fourth proportional to 274,437.13, 378,547.50 and 220,119.63 is: 303,624.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,437.13 : 378,547.50 = 220,119.63 : x
  2. Step 2: Convert to fraction form
    274,437.13/378,547.50 = 220,119.63/x
  3. Step 3: Cross multiply
    274,437.13x = 378,547.50 × 220,119.63
  4. Step 4: Simplify right side
    274,437.13x = 83,325,734,424.23
  5. Step 5: Solve for x
    x = 83,325,734,424.23/274,437.13
  6. Step 6: Final answer
    x = 303,624.13

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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.