Home / 203,454.46-280,779.56-112,810.40

Finding the Fourth Proportional to 203,454.46, 280,779.56 and 112,810.40

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Solution

The fourth proportional to 203,454.46, 280,779.56 and 112,810.40 is: 155,685.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,454.46 : 280,779.56 = 112,810.40 : x
  2. Step 2: Convert to fraction form
    203,454.46/280,779.56 = 112,810.40/x
  3. Step 3: Cross multiply
    203,454.46x = 280,779.56 × 112,810.40
  4. Step 4: Simplify right side
    203,454.46x = 31,674,853,828.30
  5. Step 5: Solve for x
    x = 31,674,853,828.30/203,454.46
  6. Step 6: Final answer
    x = 155,685.23

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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.