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Finding the Fourth Proportional to 312,301.44, 430,973.46 and 185,037.48

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Solution

The fourth proportional to 312,301.44, 430,973.46 and 185,037.48 is: 255,350.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,301.44 : 430,973.46 = 185,037.48 : x
  2. Step 2: Convert to fraction form
    312,301.44/430,973.46 = 185,037.48/x
  3. Step 3: Cross multiply
    312,301.44x = 430,973.46 × 185,037.48
  4. Step 4: Simplify right side
    312,301.44x = 79,746,242,985.28
  5. Step 5: Solve for x
    x = 79,746,242,985.28/312,301.44
  6. Step 6: Final answer
    x = 255,350.23

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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.