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Finding the Fourth Proportional to 218,281.51, 301,135.29 and 125,097.88

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Solution

The fourth proportional to 218,281.51, 301,135.29 and 125,097.88 is: 172,581.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,281.51 : 301,135.29 = 125,097.88 : x
  2. Step 2: Convert to fraction form
    218,281.51/301,135.29 = 125,097.88/x
  3. Step 3: Cross multiply
    218,281.51x = 301,135.29 × 125,097.88
  4. Step 4: Simplify right side
    218,281.51x = 37,671,386,372.19
  5. Step 5: Solve for x
    x = 37,671,386,372.19/218,281.51
  6. Step 6: Final answer
    x = 172,581.66

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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.