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Finding the Fourth Proportional to 295,427.20, 443,140.80 and 153,709.60

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Solution

The fourth proportional to 295,427.20, 443,140.80 and 153,709.60 is: 230,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,427.20 : 443,140.80 = 153,709.60 : x
  2. Step 2: Convert to fraction form
    295,427.20/443,140.80 = 153,709.60/x
  3. Step 3: Cross multiply
    295,427.20x = 443,140.80 × 153,709.60
  4. Step 4: Simplify right side
    295,427.20x = 68,114,995,111.68
  5. Step 5: Solve for x
    x = 68,114,995,111.68/295,427.20
  6. Step 6: Final answer
    x = 230,564.40

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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.