Home / 421,243.44-631,904.76-155,009.04

Finding the Fourth Proportional to 421,243.44, 631,904.76 and 155,009.04

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Solution

The fourth proportional to 421,243.44, 631,904.76 and 155,009.04 is: 232,528.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,243.44 : 631,904.76 = 155,009.04 : x
  2. Step 2: Convert to fraction form
    421,243.44/631,904.76 = 155,009.04/x
  3. Step 3: Cross multiply
    421,243.44x = 631,904.76 × 155,009.04
  4. Step 4: Simplify right side
    421,243.44x = 97,950,950,219.03
  5. Step 5: Solve for x
    x = 97,950,950,219.03/421,243.44
  6. Step 6: Final answer
    x = 232,528.13

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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.