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Finding the Fourth Proportional to 215,751.60, 297,775.26 and 135,248.16

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Solution

The fourth proportional to 215,751.60, 297,775.26 and 135,248.16 is: 186,666.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,751.60 : 297,775.26 = 135,248.16 : x
  2. Step 2: Convert to fraction form
    215,751.60/297,775.26 = 135,248.16/x
  3. Step 3: Cross multiply
    215,751.60x = 297,775.26 × 135,248.16
  4. Step 4: Simplify right side
    215,751.60x = 40,273,556,008.52
  5. Step 5: Solve for x
    x = 40,273,556,008.52/215,751.60
  6. Step 6: Final answer
    x = 186,666.31

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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.