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Finding the Fourth Proportional to 409,931.59, 565,706.58 and 228,655.26

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Solution

The fourth proportional to 409,931.59, 565,706.58 and 228,655.26 is: 315,544.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,931.59 : 565,706.58 = 228,655.26 : x
  2. Step 2: Convert to fraction form
    409,931.59/565,706.58 = 228,655.26/x
  3. Step 3: Cross multiply
    409,931.59x = 565,706.58 × 228,655.26
  4. Step 4: Simplify right side
    409,931.59x = 129,351,783,328.20
  5. Step 5: Solve for x
    x = 129,351,783,328.20/409,931.59
  6. Step 6: Final answer
    x = 315,544.81

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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.