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Finding the Fourth Proportional to 370,486.80, 555,725.34 and 90,003.24

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Solution

The fourth proportional to 370,486.80, 555,725.34 and 90,003.24 is: 135,003.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,486.80 : 555,725.34 = 90,003.24 : x
  2. Step 2: Convert to fraction form
    370,486.80/555,725.34 = 90,003.24/x
  3. Step 3: Cross multiply
    370,486.80x = 555,725.34 × 90,003.24
  4. Step 4: Simplify right side
    370,486.80x = 50,017,081,150.10
  5. Step 5: Solve for x
    x = 50,017,081,150.10/370,486.80
  6. Step 6: Final answer
    x = 135,003.68

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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.