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Finding the Fourth Proportional to 219,461.34, 302,853 and 122,667.46

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Solution

The fourth proportional to 219,461.34, 302,853 and 122,667.46 is: 169,279.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,461.34 : 302,853 = 122,667.46 : x
  2. Step 2: Convert to fraction form
    219,461.34/302,853 = 122,667.46/x
  3. Step 3: Cross multiply
    219,461.34x = 302,853 × 122,667.46
  4. Step 4: Simplify right side
    219,461.34x = 37,150,208,263.38
  5. Step 5: Solve for x
    x = 37,150,208,263.38/219,461.34
  6. Step 6: Final answer
    x = 169,279.06

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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.