Home / 438,316.66-657,504.15-153,972.64

Finding the Fourth Proportional to 438,316.66, 657,504.15 and 153,972.64

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Solution

The fourth proportional to 438,316.66, 657,504.15 and 153,972.64 is: 230,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,316.66 : 657,504.15 = 153,972.64 : x
  2. Step 2: Convert to fraction form
    438,316.66/657,504.15 = 153,972.64/x
  3. Step 3: Cross multiply
    438,316.66x = 657,504.15 × 153,972.64
  4. Step 4: Simplify right side
    438,316.66x = 101,237,649,786.46
  5. Step 5: Solve for x
    x = 101,237,649,786.46/438,316.66
  6. Step 6: Final answer
    x = 230,969.20

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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.