Home / 219,014.72-302,240-118,412.48

Finding the Fourth Proportional to 219,014.72, 302,240 and 118,412.48

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Solution

The fourth proportional to 219,014.72, 302,240 and 118,412.48 is: 163,409.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,014.72 : 302,240 = 118,412.48 : x
  2. Step 2: Convert to fraction form
    219,014.72/302,240 = 118,412.48/x
  3. Step 3: Cross multiply
    219,014.72x = 302,240 × 118,412.48
  4. Step 4: Simplify right side
    219,014.72x = 35,788,987,955.20
  5. Step 5: Solve for x
    x = 35,788,987,955.20/219,014.72
  6. Step 6: Final answer
    x = 163,409.05

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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.