Home / 317,459.29-438,113.52-209,842.69

Finding the Fourth Proportional to 317,459.29, 438,113.52 and 209,842.69

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Solution

The fourth proportional to 317,459.29, 438,113.52 and 209,842.69 is: 289,595.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,459.29 : 438,113.52 = 209,842.69 : x
  2. Step 2: Convert to fraction form
    317,459.29/438,113.52 = 209,842.69/x
  3. Step 3: Cross multiply
    317,459.29x = 438,113.52 × 209,842.69
  4. Step 4: Simplify right side
    317,459.29x = 91,934,919,562.17
  5. Step 5: Solve for x
    x = 91,934,919,562.17/317,459.29
  6. Step 6: Final answer
    x = 289,595.93

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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.