Home / 354,345.20-531,420.60-144,004.40

Finding the Fourth Proportional to 354,345.20, 531,420.60 and 144,004.40

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Solution

The fourth proportional to 354,345.20, 531,420.60 and 144,004.40 is: 215,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,345.20 : 531,420.60 = 144,004.40 : x
  2. Step 2: Convert to fraction form
    354,345.20/531,420.60 = 144,004.40/x
  3. Step 3: Cross multiply
    354,345.20x = 531,420.60 × 144,004.40
  4. Step 4: Simplify right side
    354,345.20x = 76,526,904,650.64
  5. Step 5: Solve for x
    x = 76,526,904,650.64/354,345.20
  6. Step 6: Final answer
    x = 215,967.10

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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.