Home / 272,840.20-376,518.78-151,980.20

Finding the Fourth Proportional to 272,840.20, 376,518.78 and 151,980.20

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Solution

The fourth proportional to 272,840.20, 376,518.78 and 151,980.20 is: 209,732.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,840.20 : 376,518.78 = 151,980.20 : x
  2. Step 2: Convert to fraction form
    272,840.20/376,518.78 = 151,980.20/x
  3. Step 3: Cross multiply
    272,840.20x = 376,518.78 × 151,980.20
  4. Step 4: Simplify right side
    272,840.20x = 57,223,399,017.51
  5. Step 5: Solve for x
    x = 57,223,399,017.51/272,840.20
  6. Step 6: Final answer
    x = 209,732.29

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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.