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Finding the Fourth Proportional to 389,503.12, 537,603.96 and 228,410.06

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Solution

The fourth proportional to 389,503.12, 537,603.96 and 228,410.06 is: 315,258.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,503.12 : 537,603.96 = 228,410.06 : x
  2. Step 2: Convert to fraction form
    389,503.12/537,603.96 = 228,410.06/x
  3. Step 3: Cross multiply
    389,503.12x = 537,603.96 × 228,410.06
  4. Step 4: Simplify right side
    389,503.12x = 122,794,152,759.84
  5. Step 5: Solve for x
    x = 122,794,152,759.84/389,503.12
  6. Step 6: Final answer
    x = 315,258.46

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1.5x scale

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.