Home / 389,261.55-537,079.63-228,030.10

Finding the Fourth Proportional to 389,261.55, 537,079.63 and 228,030.10

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Solution

The fourth proportional to 389,261.55, 537,079.63 and 228,030.10 is: 314,622.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,261.55 : 537,079.63 = 228,030.10 : x
  2. Step 2: Convert to fraction form
    389,261.55/537,079.63 = 228,030.10/x
  3. Step 3: Cross multiply
    389,261.55x = 537,079.63 × 228,030.10
  4. Step 4: Simplify right side
    389,261.55x = 122,470,322,693.25
  5. Step 5: Solve for x
    x = 122,470,322,693.25/389,261.55
  6. Step 6: Final answer
    x = 314,622.19

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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.