Home / 421,302.24-631,999.44-155,190.24

Finding the Fourth Proportional to 421,302.24, 631,999.44 and 155,190.24

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Solution

The fourth proportional to 421,302.24, 631,999.44 and 155,190.24 is: 232,802.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,302.24 : 631,999.44 = 155,190.24 : x
  2. Step 2: Convert to fraction form
    421,302.24/631,999.44 = 155,190.24/x
  3. Step 3: Cross multiply
    421,302.24x = 631,999.44 × 155,190.24
  4. Step 4: Simplify right side
    421,302.24x = 98,080,144,773.47
  5. Step 5: Solve for x
    x = 98,080,144,773.47/421,302.24
  6. Step 6: Final answer
    x = 232,802.33

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1.5x scale

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.