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Finding the Fourth Proportional to 360,275.98, 540,331.71 and 135,660.10

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Solution

The fourth proportional to 360,275.98, 540,331.71 and 135,660.10 is: 203,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,275.98 : 540,331.71 = 135,660.10 : x
  2. Step 2: Convert to fraction form
    360,275.98/540,331.71 = 135,660.10/x
  3. Step 3: Cross multiply
    360,275.98x = 540,331.71 × 135,660.10
  4. Step 4: Simplify right side
    360,275.98x = 73,301,453,811.77
  5. Step 5: Solve for x
    x = 73,301,453,811.77/360,275.98
  6. Step 6: Final answer
    x = 203,459.18

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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.