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Finding the Fourth Proportional to 281,341.96, 422,248.98 and 263,607.20

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Solution

The fourth proportional to 281,341.96, 422,248.98 and 263,607.20 is: 395,631.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,341.96 : 422,248.98 = 263,607.20 : x
  2. Step 2: Convert to fraction form
    281,341.96/422,248.98 = 263,607.20/x
  3. Step 3: Cross multiply
    281,341.96x = 422,248.98 × 263,607.20
  4. Step 4: Simplify right side
    281,341.96x = 111,307,871,320.66
  5. Step 5: Solve for x
    x = 111,307,871,320.66/281,341.96
  6. Step 6: Final answer
    x = 395,631.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.