Home / 217,569.95-300,247.40-122,070.41

Finding the Fourth Proportional to 217,569.95, 300,247.40 and 122,070.41

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Solution

The fourth proportional to 217,569.95, 300,247.40 and 122,070.41 is: 168,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,569.95 : 300,247.40 = 122,070.41 : x
  2. Step 2: Convert to fraction form
    217,569.95/300,247.40 = 122,070.41/x
  3. Step 3: Cross multiply
    217,569.95x = 300,247.40 × 122,070.41
  4. Step 4: Simplify right side
    217,569.95x = 36,651,323,219.43
  5. Step 5: Solve for x
    x = 36,651,323,219.43/217,569.95
  6. Step 6: Final answer
    x = 168,457.65

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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.