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Finding the Fourth Proportional to 202,803.48, 279,870.66 and 112,154.76

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Solution

The fourth proportional to 202,803.48, 279,870.66 and 112,154.76 is: 154,774.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,803.48 : 279,870.66 = 112,154.76 : x
  2. Step 2: Convert to fraction form
    202,803.48/279,870.66 = 112,154.76/x
  3. Step 3: Cross multiply
    202,803.48x = 279,870.66 × 112,154.76
  4. Step 4: Simplify right side
    202,803.48x = 31,388,826,703.34
  5. Step 5: Solve for x
    x = 31,388,826,703.34/202,803.48
  6. Step 6: Final answer
    x = 154,774.60

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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.