Home / 219,409.20-302,784.48-118,807.20

Finding the Fourth Proportional to 219,409.20, 302,784.48 and 118,807.20

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Solution

The fourth proportional to 219,409.20, 302,784.48 and 118,807.20 is: 163,953.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,409.20 : 302,784.48 = 118,807.20 : x
  2. Step 2: Convert to fraction form
    219,409.20/302,784.48 = 118,807.20/x
  3. Step 3: Cross multiply
    219,409.20x = 302,784.48 × 118,807.20
  4. Step 4: Simplify right side
    219,409.20x = 35,972,976,272.26
  5. Step 5: Solve for x
    x = 35,972,976,272.26/219,409.20
  6. Step 6: Final answer
    x = 163,953.82

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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.