Home / 209,026.18-288,459.21-118,379.89

Finding the Fourth Proportional to 209,026.18, 288,459.21 and 118,379.89

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Solution

The fourth proportional to 209,026.18, 288,459.21 and 118,379.89 is: 163,365.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,026.18 : 288,459.21 = 118,379.89 : x
  2. Step 2: Convert to fraction form
    209,026.18/288,459.21 = 118,379.89/x
  3. Step 3: Cross multiply
    209,026.18x = 288,459.21 × 118,379.89
  4. Step 4: Simplify right side
    209,026.18x = 34,147,769,549.29
  5. Step 5: Solve for x
    x = 34,147,769,549.29/209,026.18
  6. Step 6: Final answer
    x = 163,365.99

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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.