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Finding the Fourth Proportional to 230,689.44, 318,172.32 and 145,775.52

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Solution

The fourth proportional to 230,689.44, 318,172.32 and 145,775.52 is: 201,057.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,689.44 : 318,172.32 = 145,775.52 : x
  2. Step 2: Convert to fraction form
    230,689.44/318,172.32 = 145,775.52/x
  3. Step 3: Cross multiply
    230,689.44x = 318,172.32 × 145,775.52
  4. Step 4: Simplify right side
    230,689.44x = 46,381,735,397.61
  5. Step 5: Solve for x
    x = 46,381,735,397.61/230,689.44
  6. Step 6: Final answer
    x = 201,057.04

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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.