Home / 387,567.18-534,840.57-217,801.31

Finding the Fourth Proportional to 387,567.18, 534,840.57 and 217,801.31

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Solution

The fourth proportional to 387,567.18, 534,840.57 and 217,801.31 is: 300,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,567.18 : 534,840.57 = 217,801.31 : x
  2. Step 2: Convert to fraction form
    387,567.18/534,840.57 = 217,801.31/x
  3. Step 3: Cross multiply
    387,567.18x = 534,840.57 × 217,801.31
  4. Step 4: Simplify right side
    387,567.18x = 116,488,974,112.94
  5. Step 5: Solve for x
    x = 116,488,974,112.94/387,567.18
  6. Step 6: Final answer
    x = 300,564.60

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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.