Home / 261,241.85-391,973.74-142,774.81

Finding the Fourth Proportional to 261,241.85, 391,973.74 and 142,774.81

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Solution

The fourth proportional to 261,241.85, 391,973.74 and 142,774.81 is: 214,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,241.85 : 391,973.74 = 142,774.81 : x
  2. Step 2: Convert to fraction form
    261,241.85/391,973.74 = 142,774.81/x
  3. Step 3: Cross multiply
    261,241.85x = 391,973.74 × 142,774.81
  4. Step 4: Simplify right side
    261,241.85x = 55,963,974,916.62
  5. Step 5: Solve for x
    x = 55,963,974,916.62/261,241.85
  6. Step 6: Final answer
    x = 214,222.85

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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.