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Finding the Fourth Proportional to 318,532.36, 439,563.46 and 175,288.72

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Solution

The fourth proportional to 318,532.36, 439,563.46 and 175,288.72 is: 241,892.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,532.36 : 439,563.46 = 175,288.72 : x
  2. Step 2: Convert to fraction form
    318,532.36/439,563.46 = 175,288.72/x
  3. Step 3: Cross multiply
    318,532.36x = 439,563.46 × 175,288.72
  4. Step 4: Simplify right side
    318,532.36x = 77,050,516,262.17
  5. Step 5: Solve for x
    x = 77,050,516,262.17/318,532.36
  6. Step 6: Final answer
    x = 241,892.27

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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.