Home / 215,307.65-297,120.16-134,779.58

Finding the Fourth Proportional to 215,307.65, 297,120.16 and 134,779.58

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Solution

The fourth proportional to 215,307.65, 297,120.16 and 134,779.58 is: 185,993.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,307.65 : 297,120.16 = 134,779.58 : x
  2. Step 2: Convert to fraction form
    215,307.65/297,120.16 = 134,779.58/x
  3. Step 3: Cross multiply
    215,307.65x = 297,120.16 × 134,779.58
  4. Step 4: Simplify right side
    215,307.65x = 40,045,730,374.33
  5. Step 5: Solve for x
    x = 40,045,730,374.33/215,307.65
  6. Step 6: Final answer
    x = 185,993.07

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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.