Home / 395,056.40-545,184.88-223,008.72

Finding the Fourth Proportional to 395,056.40, 545,184.88 and 223,008.72

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Solution

The fourth proportional to 395,056.40, 545,184.88 and 223,008.72 is: 307,756.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,056.40 : 545,184.88 = 223,008.72 : x
  2. Step 2: Convert to fraction form
    395,056.40/545,184.88 = 223,008.72/x
  3. Step 3: Cross multiply
    395,056.40x = 545,184.88 × 223,008.72
  4. Step 4: Simplify right side
    395,056.40x = 121,580,982,252.15
  5. Step 5: Solve for x
    x = 121,580,982,252.15/395,056.40
  6. Step 6: Final answer
    x = 307,756.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.