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Finding the Fourth Proportional to 317,381.76, 437,918.40 and 183,168

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Solution

The fourth proportional to 317,381.76, 437,918.40 and 183,168 is: 252,732.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,381.76 : 437,918.40 = 183,168 : x
  2. Step 2: Convert to fraction form
    317,381.76/437,918.40 = 183,168/x
  3. Step 3: Cross multiply
    317,381.76x = 437,918.40 × 183,168
  4. Step 4: Simplify right side
    317,381.76x = 80,212,637,491.20
  5. Step 5: Solve for x
    x = 80,212,637,491.20/317,381.76
  6. Step 6: Final answer
    x = 252,732.35

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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.