Home / 218,318.40-301,257.95-122,823.05

Finding the Fourth Proportional to 218,318.40, 301,257.95 and 122,823.05

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Solution

The fourth proportional to 218,318.40, 301,257.95 and 122,823.05 is: 169,483.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,318.40 : 301,257.95 = 122,823.05 : x
  2. Step 2: Convert to fraction form
    218,318.40/301,257.95 = 122,823.05/x
  3. Step 3: Cross multiply
    218,318.40x = 301,257.95 × 122,823.05
  4. Step 4: Simplify right side
    218,318.40x = 37,001,418,135.34
  5. Step 5: Solve for x
    x = 37,001,418,135.34/218,318.40
  6. Step 6: Final answer
    x = 169,483.74

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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.