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Finding the Fourth Proportional to 310,330.51, 428,244.17 and 174,370.19

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Solution

The fourth proportional to 310,330.51, 428,244.17 and 174,370.19 is: 240,624.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,330.51 : 428,244.17 = 174,370.19 : x
  2. Step 2: Convert to fraction form
    310,330.51/428,244.17 = 174,370.19/x
  3. Step 3: Cross multiply
    310,330.51x = 428,244.17 × 174,370.19
  4. Step 4: Simplify right side
    310,330.51x = 74,673,015,747.47
  5. Step 5: Solve for x
    x = 74,673,015,747.47/310,330.51
  6. Step 6: Final answer
    x = 240,624.15

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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.