Home / 310,830.27-428,945.05-174,864.18

Finding the Fourth Proportional to 310,830.27, 428,945.05 and 174,864.18

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Solution

The fourth proportional to 310,830.27, 428,945.05 and 174,864.18 is: 241,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,830.27 : 428,945.05 = 174,864.18 : x
  2. Step 2: Convert to fraction form
    310,830.27/428,945.05 = 174,864.18/x
  3. Step 3: Cross multiply
    310,830.27x = 428,945.05 × 174,864.18
  4. Step 4: Simplify right side
    310,830.27x = 75,007,122,864.01
  5. Step 5: Solve for x
    x = 75,007,122,864.01/310,830.27
  6. Step 6: Final answer
    x = 241,312.16

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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.