Home / 218,178.49-301,088.11-122,684.35

Finding the Fourth Proportional to 218,178.49, 301,088.11 and 122,684.35

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Solution

The fourth proportional to 218,178.49, 301,088.11 and 122,684.35 is: 169,305.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,178.49 : 301,088.11 = 122,684.35 : x
  2. Step 2: Convert to fraction form
    218,178.49/301,088.11 = 122,684.35/x
  3. Step 3: Cross multiply
    218,178.49x = 301,088.11 × 122,684.35
  4. Step 4: Simplify right side
    218,178.49x = 36,938,799,068.08
  5. Step 5: Solve for x
    x = 36,938,799,068.08/218,178.49
  6. Step 6: Final answer
    x = 169,305.41

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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.