Home / 219,147.79-302,461.05-127,252.75

Finding the Fourth Proportional to 219,147.79, 302,461.05 and 127,252.75

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Solution

The fourth proportional to 219,147.79, 302,461.05 and 127,252.75 is: 175,630.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,147.79 : 302,461.05 = 127,252.75 : x
  2. Step 2: Convert to fraction form
    219,147.79/302,461.05 = 127,252.75/x
  3. Step 3: Cross multiply
    219,147.79x = 302,461.05 × 127,252.75
  4. Step 4: Simplify right side
    219,147.79x = 38,489,000,380.39
  5. Step 5: Solve for x
    x = 38,489,000,380.39/219,147.79
  6. Step 6: Final answer
    x = 175,630.34

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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.