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Finding the Fourth Proportional to 219,013.88, 302,239.01 and 123,520.34

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Solution

The fourth proportional to 219,013.88, 302,239.01 and 123,520.34 is: 170,458.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,013.88 : 302,239.01 = 123,520.34 : x
  2. Step 2: Convert to fraction form
    219,013.88/302,239.01 = 123,520.34/x
  3. Step 3: Cross multiply
    219,013.88x = 302,239.01 × 123,520.34
  4. Step 4: Simplify right side
    219,013.88x = 37,332,666,340.86
  5. Step 5: Solve for x
    x = 37,332,666,340.86/219,013.88
  6. Step 6: Final answer
    x = 170,458.00

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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.