Home / 219,117.32-302,381.30-118,515.08

Finding the Fourth Proportional to 219,117.32, 302,381.30 and 118,515.08

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Solution

The fourth proportional to 219,117.32, 302,381.30 and 118,515.08 is: 163,550.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,117.32 : 302,381.30 = 118,515.08 : x
  2. Step 2: Convert to fraction form
    219,117.32/302,381.30 = 118,515.08/x
  3. Step 3: Cross multiply
    219,117.32x = 302,381.30 × 118,515.08
  4. Step 4: Simplify right side
    219,117.32x = 35,836,743,960.00
  5. Step 5: Solve for x
    x = 35,836,743,960.00/219,117.32
  6. Step 6: Final answer
    x = 163,550.49

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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.