Home / 325,158.50-487,493.64-100,386.74

Finding the Fourth Proportional to 325,158.50, 487,493.64 and 100,386.74

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Solution

The fourth proportional to 325,158.50, 487,493.64 and 100,386.74 is: 150,504.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,158.50 : 487,493.64 = 100,386.74 : x
  2. Step 2: Convert to fraction form
    325,158.50/487,493.64 = 100,386.74/x
  3. Step 3: Cross multiply
    325,158.50x = 487,493.64 × 100,386.74
  4. Step 4: Simplify right side
    325,158.50x = 48,937,898,509.07
  5. Step 5: Solve for x
    x = 48,937,898,509.07/325,158.50
  6. Step 6: Final answer
    x = 150,504.75

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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.