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Finding the Fourth Proportional to 360,112.20, 540,168.30 and 357,779.40

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Solution

The fourth proportional to 360,112.20, 540,168.30 and 357,779.40 is: 536,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,112.20 : 540,168.30 = 357,779.40 : x
  2. Step 2: Convert to fraction form
    360,112.20/540,168.30 = 357,779.40/x
  3. Step 3: Cross multiply
    360,112.20x = 540,168.30 × 357,779.40
  4. Step 4: Simplify right side
    360,112.20x = 193,261,090,273.02
  5. Step 5: Solve for x
    x = 193,261,090,273.02/360,112.20
  6. Step 6: Final answer
    x = 536,669.10

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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.