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Finding the Fourth Proportional to 222,820.39, 307,492.65 and 127,326.86

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Solution

The fourth proportional to 222,820.39, 307,492.65 and 127,326.86 is: 175,711.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,820.39 : 307,492.65 = 127,326.86 : x
  2. Step 2: Convert to fraction form
    222,820.39/307,492.65 = 127,326.86/x
  3. Step 3: Cross multiply
    222,820.39x = 307,492.65 × 127,326.86
  4. Step 4: Simplify right side
    222,820.39x = 39,152,072,192.21
  5. Step 5: Solve for x
    x = 39,152,072,192.21/222,820.39
  6. Step 6: Final answer
    x = 175,711.35

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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.