Home / 371,285.98-512,332.09-207,919.71

Finding the Fourth Proportional to 371,285.98, 512,332.09 and 207,919.71

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Solution

The fourth proportional to 371,285.98, 512,332.09 and 207,919.71 is: 286,905.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,285.98 : 512,332.09 = 207,919.71 : x
  2. Step 2: Convert to fraction form
    371,285.98/512,332.09 = 207,919.71/x
  3. Step 3: Cross multiply
    371,285.98x = 512,332.09 × 207,919.71
  4. Step 4: Simplify right side
    371,285.98x = 106,523,939,056.70
  5. Step 5: Solve for x
    x = 106,523,939,056.70/371,285.98
  6. Step 6: Final answer
    x = 286,905.37

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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.