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Finding the Fourth Proportional to 360,176.94, 540,288.45 and 138,560.94

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Solution

The fourth proportional to 360,176.94, 540,288.45 and 138,560.94 is: 207,850.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,176.94 : 540,288.45 = 138,560.94 : x
  2. Step 2: Convert to fraction form
    360,176.94/540,288.45 = 138,560.94/x
  3. Step 3: Cross multiply
    360,176.94x = 540,288.45 × 138,560.94
  4. Step 4: Simplify right side
    360,176.94x = 74,862,875,503.14
  5. Step 5: Solve for x
    x = 74,862,875,503.14/360,176.94
  6. Step 6: Final answer
    x = 207,850.27

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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.