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Finding the Fourth Proportional to 374,800.32, 517,212 and 223,807.68

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Solution

The fourth proportional to 374,800.32, 517,212 and 223,807.68 is: 308,847.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,800.32 : 517,212 = 223,807.68 : x
  2. Step 2: Convert to fraction form
    374,800.32/517,212 = 223,807.68/x
  3. Step 3: Cross multiply
    374,800.32x = 517,212 × 223,807.68
  4. Step 4: Simplify right side
    374,800.32x = 115,756,017,788.16
  5. Step 5: Solve for x
    x = 115,756,017,788.16/374,800.32
  6. Step 6: Final answer
    x = 308,847.17

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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.