Home / 387,927.45-535,331.49-224,590.85

Finding the Fourth Proportional to 387,927.45, 535,331.49 and 224,590.85

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Solution

The fourth proportional to 387,927.45, 535,331.49 and 224,590.85 is: 309,930.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,927.45 : 535,331.49 = 224,590.85 : x
  2. Step 2: Convert to fraction form
    387,927.45/535,331.49 = 224,590.85/x
  3. Step 3: Cross multiply
    387,927.45x = 535,331.49 × 224,590.85
  4. Step 4: Simplify right side
    387,927.45x = 120,230,551,694.21
  5. Step 5: Solve for x
    x = 120,230,551,694.21/387,927.45
  6. Step 6: Final answer
    x = 309,930.51

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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.