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Finding the Fourth Proportional to 270,597.78, 373,500 and 157,442.40

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Solution

The fourth proportional to 270,597.78, 373,500 and 157,442.40 is: 217,314.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,597.78 : 373,500 = 157,442.40 : x
  2. Step 2: Convert to fraction form
    270,597.78/373,500 = 157,442.40/x
  3. Step 3: Cross multiply
    270,597.78x = 373,500 × 157,442.40
  4. Step 4: Simplify right side
    270,597.78x = 58,804,736,400
  5. Step 5: Solve for x
    x = 58,804,736,400/270,597.78
  6. Step 6: Final answer
    x = 217,314.19

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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.