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Finding the Fourth Proportional to 360,210.23, 540,315.34 and 135,621.06

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Solution

The fourth proportional to 360,210.23, 540,315.34 and 135,621.06 is: 203,431.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,210.23 : 540,315.34 = 135,621.06 : x
  2. Step 2: Convert to fraction form
    360,210.23/540,315.34 = 135,621.06/x
  3. Step 3: Cross multiply
    360,210.23x = 540,315.34 × 135,621.06
  4. Step 4: Simplify right side
    360,210.23x = 73,278,139,145.06
  5. Step 5: Solve for x
    x = 73,278,139,145.06/360,210.23
  6. Step 6: Final answer
    x = 203,431.59

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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.