Home / 399,332.37-551,090.04-218,055.81

Finding the Fourth Proportional to 399,332.37, 551,090.04 and 218,055.81

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Solution

The fourth proportional to 399,332.37, 551,090.04 and 218,055.81 is: 300,923.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,332.37 : 551,090.04 = 218,055.81 : x
  2. Step 2: Convert to fraction form
    399,332.37/551,090.04 = 218,055.81/x
  3. Step 3: Cross multiply
    399,332.37x = 551,090.04 × 218,055.81
  4. Step 4: Simplify right side
    399,332.37x = 120,168,385,055.13
  5. Step 5: Solve for x
    x = 120,168,385,055.13/399,332.37
  6. Step 6: Final answer
    x = 300,923.23

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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.