Home / 424,932.10-637,628.55-188,311.30

Finding the Fourth Proportional to 424,932.10, 637,628.55 and 188,311.30

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Solution

The fourth proportional to 424,932.10, 637,628.55 and 188,311.30 is: 282,569.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,932.10 : 637,628.55 = 188,311.30 : x
  2. Step 2: Convert to fraction form
    424,932.10/637,628.55 = 188,311.30/x
  3. Step 3: Cross multiply
    424,932.10x = 637,628.55 × 188,311.30
  4. Step 4: Simplify right side
    424,932.10x = 120,072,661,167.62
  5. Step 5: Solve for x
    x = 120,072,661,167.62/424,932.10
  6. Step 6: Final answer
    x = 282,569.05

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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.