Home / 384,807.57-531,037.79-212,722.75

Finding the Fourth Proportional to 384,807.57, 531,037.79 and 212,722.75

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Solution

The fourth proportional to 384,807.57, 531,037.79 and 212,722.75 is: 293,559.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,807.57 : 531,037.79 = 212,722.75 : x
  2. Step 2: Convert to fraction form
    384,807.57/531,037.79 = 212,722.75/x
  3. Step 3: Cross multiply
    384,807.57x = 531,037.79 × 212,722.75
  4. Step 4: Simplify right side
    384,807.57x = 112,963,819,042.72
  5. Step 5: Solve for x
    x = 112,963,819,042.72/384,807.57
  6. Step 6: Final answer
    x = 293,559.24

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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.