Home / 315,253.12-434,985.60-200,577.28

Finding the Fourth Proportional to 315,253.12, 434,985.60 and 200,577.28

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Solution

The fourth proportional to 315,253.12, 434,985.60 and 200,577.28 is: 276,756.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,253.12 : 434,985.60 = 200,577.28 : x
  2. Step 2: Convert to fraction form
    315,253.12/434,985.60 = 200,577.28/x
  3. Step 3: Cross multiply
    315,253.12x = 434,985.60 × 200,577.28
  4. Step 4: Simplify right side
    315,253.12x = 87,248,228,487.17
  5. Step 5: Solve for x
    x = 87,248,228,487.17/315,253.12
  6. Step 6: Final answer
    x = 276,756.11

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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.