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Finding the Fourth Proportional to 165,458.68, 228,333.18 and 90,007

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Solution

The fourth proportional to 165,458.68, 228,333.18 and 90,007 is: 124,209.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,458.68 : 228,333.18 = 90,007 : x
  2. Step 2: Convert to fraction form
    165,458.68/228,333.18 = 90,007/x
  3. Step 3: Cross multiply
    165,458.68x = 228,333.18 × 90,007
  4. Step 4: Simplify right side
    165,458.68x = 20,551,584,532.26
  5. Step 5: Solve for x
    x = 20,551,584,532.26/165,458.68
  6. Step 6: Final answer
    x = 124,209.77

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1.5x scale

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.