Home / 387,013.87-534,092.67-214,934.70

Finding the Fourth Proportional to 387,013.87, 534,092.67 and 214,934.70

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Solution

The fourth proportional to 387,013.87, 534,092.67 and 214,934.70 is: 296,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,013.87 : 534,092.67 = 214,934.70 : x
  2. Step 2: Convert to fraction form
    387,013.87/534,092.67 = 214,934.70/x
  3. Step 3: Cross multiply
    387,013.87x = 534,092.67 × 214,934.70
  4. Step 4: Simplify right side
    387,013.87x = 114,795,047,798.65
  5. Step 5: Solve for x
    x = 114,795,047,798.65/387,013.87
  6. Step 6: Final answer
    x = 296,617.40

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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.