Home / 317,859.48-438,688.08-205,010.28

Finding the Fourth Proportional to 317,859.48, 438,688.08 and 205,010.28

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Solution

The fourth proportional to 317,859.48, 438,688.08 and 205,010.28 is: 282,941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,859.48 : 438,688.08 = 205,010.28 : x
  2. Step 2: Convert to fraction form
    317,859.48/438,688.08 = 205,010.28/x
  3. Step 3: Cross multiply
    317,859.48x = 438,688.08 × 205,010.28
  4. Step 4: Simplify right side
    317,859.48x = 89,935,566,113.46
  5. Step 5: Solve for x
    x = 89,935,566,113.46/317,859.48
  6. Step 6: Final answer
    x = 282,941.27

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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.