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Finding the Fourth Proportional to 323,143.60, 484,423.80 and 210,877.60

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Solution

The fourth proportional to 323,143.60, 484,423.80 and 210,877.60 is: 316,126.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,143.60 : 484,423.80 = 210,877.60 : x
  2. Step 2: Convert to fraction form
    323,143.60/484,423.80 = 210,877.60/x
  3. Step 3: Cross multiply
    323,143.60x = 484,423.80 × 210,877.60
  4. Step 4: Simplify right side
    323,143.60x = 102,154,128,326.88
  5. Step 5: Solve for x
    x = 102,154,128,326.88/323,143.60
  6. Step 6: Final answer
    x = 316,126.11

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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.