Home / 421,569.10-631,747.34-181,617.12

Finding the Fourth Proportional to 421,569.10, 631,747.34 and 181,617.12

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Solution

The fourth proportional to 421,569.10, 631,747.34 and 181,617.12 is: 272,164.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,569.10 : 631,747.34 = 181,617.12 : x
  2. Step 2: Convert to fraction form
    421,569.10/631,747.34 = 181,617.12/x
  3. Step 3: Cross multiply
    421,569.10x = 631,747.34 × 181,617.12
  4. Step 4: Simplify right side
    421,569.10x = 114,736,132,458.46
  5. Step 5: Solve for x
    x = 114,736,132,458.46/421,569.10
  6. Step 6: Final answer
    x = 272,164.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.