Home / 219,178.86-302,463.84-122,384.21

Finding the Fourth Proportional to 219,178.86, 302,463.84 and 122,384.21

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Solution

The fourth proportional to 219,178.86, 302,463.84 and 122,384.21 is: 168,888.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,178.86 : 302,463.84 = 122,384.21 : x
  2. Step 2: Convert to fraction form
    219,178.86/302,463.84 = 122,384.21/x
  3. Step 3: Cross multiply
    219,178.86x = 302,463.84 × 122,384.21
  4. Step 4: Simplify right side
    219,178.86x = 37,016,796,599.65
  5. Step 5: Solve for x
    x = 37,016,796,599.65/219,178.86
  6. Step 6: Final answer
    x = 168,888.54

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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.