Home / 218,319.31-301,263.97-122,807.55

Finding the Fourth Proportional to 218,319.31, 301,263.97 and 122,807.55

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Solution

The fourth proportional to 218,319.31, 301,263.97 and 122,807.55 is: 169,465.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,319.31 : 301,263.97 = 122,807.55 : x
  2. Step 2: Convert to fraction form
    218,319.31/301,263.97 = 122,807.55/x
  3. Step 3: Cross multiply
    218,319.31x = 301,263.97 × 122,807.55
  4. Step 4: Simplify right side
    218,319.31x = 36,997,490,058.97
  5. Step 5: Solve for x
    x = 36,997,490,058.97/218,319.31
  6. Step 6: Final answer
    x = 169,465.04

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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.