Home / 310,317.15-428,250.89-174,351.36

Finding the Fourth Proportional to 310,317.15, 428,250.89 and 174,351.36

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Solution

The fourth proportional to 310,317.15, 428,250.89 and 174,351.36 is: 240,612.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,317.15 : 428,250.89 = 174,351.36 : x
  2. Step 2: Convert to fraction form
    310,317.15/428,250.89 = 174,351.36/x
  3. Step 3: Cross multiply
    310,317.15x = 428,250.89 × 174,351.36
  4. Step 4: Simplify right side
    310,317.15x = 74,666,125,092.71
  5. Step 5: Solve for x
    x = 74,666,125,092.71/310,317.15
  6. Step 6: Final answer
    x = 240,612.31

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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.