Home / 219,213.85-302,484.76-122,405.89

Finding the Fourth Proportional to 219,213.85, 302,484.76 and 122,405.89

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Solution

The fourth proportional to 219,213.85, 302,484.76 and 122,405.89 is: 168,903.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,213.85 : 302,484.76 = 122,405.89 : x
  2. Step 2: Convert to fraction form
    219,213.85/302,484.76 = 122,405.89/x
  3. Step 3: Cross multiply
    219,213.85x = 302,484.76 × 122,405.89
  4. Step 4: Simplify right side
    219,213.85x = 37,025,916,259.24
  5. Step 5: Solve for x
    x = 37,025,916,259.24/219,213.85
  6. Step 6: Final answer
    x = 168,903.18

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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.