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Finding the Fourth Proportional to 286,475.34, 427,610.18 and 265,363.50

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Solution

The fourth proportional to 286,475.34, 427,610.18 and 265,363.50 is: 396,097.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,475.34 : 427,610.18 = 265,363.50 : x
  2. Step 2: Convert to fraction form
    286,475.34/427,610.18 = 265,363.50/x
  3. Step 3: Cross multiply
    286,475.34x = 427,610.18 × 265,363.50
  4. Step 4: Simplify right side
    286,475.34x = 113,472,134,000.43
  5. Step 5: Solve for x
    x = 113,472,134,000.43/286,475.34
  6. Step 6: Final answer
    x = 396,097.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.