Home / 202,619.40-303,929.10-90,353.40

Finding the Fourth Proportional to 202,619.40, 303,929.10 and 90,353.40

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Solution

The fourth proportional to 202,619.40, 303,929.10 and 90,353.40 is: 135,530.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,619.40 : 303,929.10 = 90,353.40 : x
  2. Step 2: Convert to fraction form
    202,619.40/303,929.10 = 90,353.40/x
  3. Step 3: Cross multiply
    202,619.40x = 303,929.10 × 90,353.40
  4. Step 4: Simplify right side
    202,619.40x = 27,461,027,543.94
  5. Step 5: Solve for x
    x = 27,461,027,543.94/202,619.40
  6. Step 6: Final answer
    x = 135,530.10

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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.