Home / 374,328.40-516,631.44-238,420.60

Finding the Fourth Proportional to 374,328.40, 516,631.44 and 238,420.60

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Solution

The fourth proportional to 374,328.40, 516,631.44 and 238,420.60 is: 329,057.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,328.40 : 516,631.44 = 238,420.60 : x
  2. Step 2: Convert to fraction form
    374,328.40/516,631.44 = 238,420.60/x
  3. Step 3: Cross multiply
    374,328.40x = 516,631.44 × 238,420.60
  4. Step 4: Simplify right side
    374,328.40x = 123,175,577,903.66
  5. Step 5: Solve for x
    x = 123,175,577,903.66/374,328.40
  6. Step 6: Final answer
    x = 329,057.53

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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.