Home / 228,689.12-343,066.89-70,930.28

Finding the Fourth Proportional to 228,689.12, 343,066.89 and 70,930.28

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Solution

The fourth proportional to 228,689.12, 343,066.89 and 70,930.28 is: 106,405.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,689.12 : 343,066.89 = 70,930.28 : x
  2. Step 2: Convert to fraction form
    228,689.12/343,066.89 = 70,930.28/x
  3. Step 3: Cross multiply
    228,689.12x = 343,066.89 × 70,930.28
  4. Step 4: Simplify right side
    228,689.12x = 24,333,830,566.43
  5. Step 5: Solve for x
    x = 24,333,830,566.43/228,689.12
  6. Step 6: Final answer
    x = 106,405.72

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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.