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Finding the Fourth Proportional to 310,500.33, 428,535.83 and 174,545.47

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Solution

The fourth proportional to 310,500.33, 428,535.83 and 174,545.47 is: 240,898.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,500.33 : 428,535.83 = 174,545.47 : x
  2. Step 2: Convert to fraction form
    310,500.33/428,535.83 = 174,545.47/x
  3. Step 3: Cross multiply
    310,500.33x = 428,535.83 × 174,545.47
  4. Step 4: Simplify right side
    310,500.33x = 74,798,987,859.19
  5. Step 5: Solve for x
    x = 74,798,987,859.19/310,500.33
  6. Step 6: Final answer
    x = 240,898.26

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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.