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Finding the Fourth Proportional to 218,298.62, 301,206.65 and 127,636.98

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Solution

The fourth proportional to 218,298.62, 301,206.65 and 127,636.98 is: 176,112.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,298.62 : 301,206.65 = 127,636.98 : x
  2. Step 2: Convert to fraction form
    218,298.62/301,206.65 = 127,636.98/x
  3. Step 3: Cross multiply
    218,298.62x = 301,206.65 × 127,636.98
  4. Step 4: Simplify right side
    218,298.62x = 38,445,106,523.73
  5. Step 5: Solve for x
    x = 38,445,106,523.73/218,298.62
  6. Step 6: Final answer
    x = 176,112.46

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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.