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Finding the Fourth Proportional to 202,846.61, 279,903.80 and 112,190.20

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Solution

The fourth proportional to 202,846.61, 279,903.80 and 112,190.20 is: 154,808.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,846.61 : 279,903.80 = 112,190.20 : x
  2. Step 2: Convert to fraction form
    202,846.61/279,903.80 = 112,190.20/x
  3. Step 3: Cross multiply
    202,846.61x = 279,903.80 × 112,190.20
  4. Step 4: Simplify right side
    202,846.61x = 31,402,462,883.48
  5. Step 5: Solve for x
    x = 31,402,462,883.48/202,846.61
  6. Step 6: Final answer
    x = 154,808.91

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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.