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Finding the Fourth Proportional to 292,512.30, 438,768.45 and 166,103.70

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Solution

The fourth proportional to 292,512.30, 438,768.45 and 166,103.70 is: 249,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,512.30 : 438,768.45 = 166,103.70 : x
  2. Step 2: Convert to fraction form
    292,512.30/438,768.45 = 166,103.70/x
  3. Step 3: Cross multiply
    292,512.30x = 438,768.45 × 166,103.70
  4. Step 4: Simplify right side
    292,512.30x = 72,881,062,988.27
  5. Step 5: Solve for x
    x = 72,881,062,988.27/292,512.30
  6. Step 6: Final answer
    x = 249,155.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.