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Finding the Fourth Proportional to 295,656.90, 443,485.35 and 85,301.70

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Solution

The fourth proportional to 295,656.90, 443,485.35 and 85,301.70 is: 127,952.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,656.90 : 443,485.35 = 85,301.70 : x
  2. Step 2: Convert to fraction form
    295,656.90/443,485.35 = 85,301.70/x
  3. Step 3: Cross multiply
    295,656.90x = 443,485.35 × 85,301.70
  4. Step 4: Simplify right side
    295,656.90x = 37,830,054,280.10
  5. Step 5: Solve for x
    x = 37,830,054,280.10/295,656.90
  6. Step 6: Final answer
    x = 127,952.55

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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.