Home / 202,355.10-279,248.51-111,711.10

Finding the Fourth Proportional to 202,355.10, 279,248.51 and 111,711.10

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Solution

The fourth proportional to 202,355.10, 279,248.51 and 111,711.10 is: 154,160.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,355.10 : 279,248.51 = 111,711.10 : x
  2. Step 2: Convert to fraction form
    202,355.10/279,248.51 = 111,711.10/x
  3. Step 3: Cross multiply
    202,355.10x = 279,248.51 × 111,711.10
  4. Step 4: Simplify right side
    202,355.10x = 31,195,158,225.46
  5. Step 5: Solve for x
    x = 31,195,158,225.46/202,355.10
  6. Step 6: Final answer
    x = 154,160.47

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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.