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Finding the Fourth Proportional to 202,507.97, 279,459.86 and 111,870.18

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Solution

The fourth proportional to 202,507.97, 279,459.86 and 111,870.18 is: 154,380.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,507.97 : 279,459.86 = 111,870.18 : x
  2. Step 2: Convert to fraction form
    202,507.97/279,459.86 = 111,870.18/x
  3. Step 3: Cross multiply
    202,507.97x = 279,459.86 × 111,870.18
  4. Step 4: Simplify right side
    202,507.97x = 31,263,224,281.62
  5. Step 5: Solve for x
    x = 31,263,224,281.62/202,507.97
  6. Step 6: Final answer
    x = 154,380.22

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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.