Home / 370,478.64-555,742.44-145,821.36

Finding the Fourth Proportional to 370,478.64, 555,742.44 and 145,821.36

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Solution

The fourth proportional to 370,478.64, 555,742.44 and 145,821.36 is: 218,741.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,478.64 : 555,742.44 = 145,821.36 : x
  2. Step 2: Convert to fraction form
    370,478.64/555,742.44 = 145,821.36/x
  3. Step 3: Cross multiply
    370,478.64x = 555,742.44 × 145,821.36
  4. Step 4: Simplify right side
    370,478.64x = 81,039,118,410.52
  5. Step 5: Solve for x
    x = 81,039,118,410.52/370,478.64
  6. Step 6: Final answer
    x = 218,741.68

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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.