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Finding the Fourth Proportional to 403,015.76, 603,693.72 and 236,402

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Solution

The fourth proportional to 403,015.76, 603,693.72 and 236,402 is: 354,116.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,015.76 : 603,693.72 = 236,402 : x
  2. Step 2: Convert to fraction form
    403,015.76/603,693.72 = 236,402/x
  3. Step 3: Cross multiply
    403,015.76x = 603,693.72 × 236,402
  4. Step 4: Simplify right side
    403,015.76x = 142,714,402,795.44
  5. Step 5: Solve for x
    x = 142,714,402,795.44/403,015.76
  6. Step 6: Final answer
    x = 354,116.18

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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.