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Finding the Fourth Proportional to 360,010.30, 540,015.45 and 123,360.70

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Solution

The fourth proportional to 360,010.30, 540,015.45 and 123,360.70 is: 185,041.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,010.30 : 540,015.45 = 123,360.70 : x
  2. Step 2: Convert to fraction form
    360,010.30/540,015.45 = 123,360.70/x
  3. Step 3: Cross multiply
    360,010.30x = 540,015.45 × 123,360.70
  4. Step 4: Simplify right side
    360,010.30x = 66,616,683,922.82
  5. Step 5: Solve for x
    x = 66,616,683,922.82/360,010.30
  6. Step 6: Final answer
    x = 185,041.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.