Home / 302,678.04-454,043.19-78,036.54

Finding the Fourth Proportional to 302,678.04, 454,043.19 and 78,036.54

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Solution

The fourth proportional to 302,678.04, 454,043.19 and 78,036.54 is: 117,061.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,678.04 : 454,043.19 = 78,036.54 : x
  2. Step 2: Convert to fraction form
    302,678.04/454,043.19 = 78,036.54/x
  3. Step 3: Cross multiply
    302,678.04x = 454,043.19 × 78,036.54
  4. Step 4: Simplify right side
    302,678.04x = 35,431,959,558.16
  5. Step 5: Solve for x
    x = 35,431,959,558.16/302,678.04
  6. Step 6: Final answer
    x = 117,061.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.