Home / 310,268.30-428,333.54-208,827.14

Finding the Fourth Proportional to 310,268.30, 428,333.54 and 208,827.14

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Solution

The fourth proportional to 310,268.30, 428,333.54 and 208,827.14 is: 288,291.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,268.30 : 428,333.54 = 208,827.14 : x
  2. Step 2: Convert to fraction form
    310,268.30/428,333.54 = 208,827.14/x
  3. Step 3: Cross multiply
    310,268.30x = 428,333.54 × 208,827.14
  4. Step 4: Simplify right side
    310,268.30x = 89,447,664,938.47
  5. Step 5: Solve for x
    x = 89,447,664,938.47/310,268.30
  6. Step 6: Final answer
    x = 288,291.35

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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.