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Finding the Fourth Proportional to 292,017.72, 438,024 and 92,338.28

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Solution

The fourth proportional to 292,017.72, 438,024 and 92,338.28 is: 138,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,017.72 : 438,024 = 92,338.28 : x
  2. Step 2: Convert to fraction form
    292,017.72/438,024 = 92,338.28/x
  3. Step 3: Cross multiply
    292,017.72x = 438,024 × 92,338.28
  4. Step 4: Simplify right side
    292,017.72x = 40,446,382,758.72
  5. Step 5: Solve for x
    x = 40,446,382,758.72/292,017.72
  6. Step 6: Final answer
    x = 138,506.60

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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.