Home / 307,970.50-424,987.32-193,310.75

Finding the Fourth Proportional to 307,970.50, 424,987.32 and 193,310.75

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Solution

The fourth proportional to 307,970.50, 424,987.32 and 193,310.75 is: 266,761.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,970.50 : 424,987.32 = 193,310.75 : x
  2. Step 2: Convert to fraction form
    307,970.50/424,987.32 = 193,310.75/x
  3. Step 3: Cross multiply
    307,970.50x = 424,987.32 × 193,310.75
  4. Step 4: Simplify right side
    307,970.50x = 82,154,617,569.69
  5. Step 5: Solve for x
    x = 82,154,617,569.69/307,970.50
  6. Step 6: Final answer
    x = 266,761.32

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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.