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Finding the Fourth Proportional to 310,499.83, 428,535.14 and 174,544.97

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Solution

The fourth proportional to 310,499.83, 428,535.14 and 174,544.97 is: 240,897.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,499.83 : 428,535.14 = 174,544.97 : x
  2. Step 2: Convert to fraction form
    310,499.83/428,535.14 = 174,544.97/x
  3. Step 3: Cross multiply
    310,499.83x = 428,535.14 × 174,544.97
  4. Step 4: Simplify right side
    310,499.83x = 74,798,653,155.25
  5. Step 5: Solve for x
    x = 74,798,653,155.25/310,499.83
  6. Step 6: Final answer
    x = 240,897.57

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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.