Home / 387,632.48-534,977.16-215,567.60

Finding the Fourth Proportional to 387,632.48, 534,977.16 and 215,567.60

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Solution

The fourth proportional to 387,632.48, 534,977.16 and 215,567.60 is: 297,507.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,632.48 : 534,977.16 = 215,567.60 : x
  2. Step 2: Convert to fraction form
    387,632.48/534,977.16 = 215,567.60/x
  3. Step 3: Cross multiply
    387,632.48x = 534,977.16 × 215,567.60
  4. Step 4: Simplify right side
    387,632.48x = 115,323,742,436.02
  5. Step 5: Solve for x
    x = 115,323,742,436.02/387,632.48
  6. Step 6: Final answer
    x = 297,507.94

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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.