Home / 287,350.23-431,025.44-118,685.18

Finding the Fourth Proportional to 287,350.23, 431,025.44 and 118,685.18

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Solution

The fourth proportional to 287,350.23, 431,025.44 and 118,685.18 is: 178,027.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,350.23 : 431,025.44 = 118,685.18 : x
  2. Step 2: Convert to fraction form
    287,350.23/431,025.44 = 118,685.18/x
  3. Step 3: Cross multiply
    287,350.23x = 431,025.44 × 118,685.18
  4. Step 4: Simplify right side
    287,350.23x = 51,156,332,415.12
  5. Step 5: Solve for x
    x = 51,156,332,415.12/287,350.23
  6. Step 6: Final answer
    x = 178,027.81

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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.