Home / 383,426.10-575,139.15-102,971.70

Finding the Fourth Proportional to 383,426.10, 575,139.15 and 102,971.70

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Solution

The fourth proportional to 383,426.10, 575,139.15 and 102,971.70 is: 154,457.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,426.10 : 575,139.15 = 102,971.70 : x
  2. Step 2: Convert to fraction form
    383,426.10/575,139.15 = 102,971.70/x
  3. Step 3: Cross multiply
    383,426.10x = 575,139.15 × 102,971.70
  4. Step 4: Simplify right side
    383,426.10x = 59,223,056,012.06
  5. Step 5: Solve for x
    x = 59,223,056,012.06/383,426.10
  6. Step 6: Final answer
    x = 154,457.55

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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.