Home / 228,885.12-343,000.08-128,835.36

Finding the Fourth Proportional to 228,885.12, 343,000.08 and 128,835.36

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Solution

The fourth proportional to 228,885.12, 343,000.08 and 128,835.36 is: 193,068.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,885.12 : 343,000.08 = 128,835.36 : x
  2. Step 2: Convert to fraction form
    228,885.12/343,000.08 = 128,835.36/x
  3. Step 3: Cross multiply
    228,885.12x = 343,000.08 × 128,835.36
  4. Step 4: Simplify right side
    228,885.12x = 44,190,538,786.83
  5. Step 5: Solve for x
    x = 44,190,538,786.83/228,885.12
  6. Step 6: Final answer
    x = 193,068.64

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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.