Home / 219,329.44-302,656.40-128,675.92

Finding the Fourth Proportional to 219,329.44, 302,656.40 and 128,675.92

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Solution

The fourth proportional to 219,329.44, 302,656.40 and 128,675.92 is: 177,562.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,329.44 : 302,656.40 = 128,675.92 : x
  2. Step 2: Convert to fraction form
    219,329.44/302,656.40 = 128,675.92/x
  3. Step 3: Cross multiply
    219,329.44x = 302,656.40 × 128,675.92
  4. Step 4: Simplify right side
    219,329.44x = 38,944,590,713.89
  5. Step 5: Solve for x
    x = 38,944,590,713.89/219,329.44
  6. Step 6: Final answer
    x = 177,562.08

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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.