Home / 385,199.55-577,686.33-145,140.26

Finding the Fourth Proportional to 385,199.55, 577,686.33 and 145,140.26

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Solution

The fourth proportional to 385,199.55, 577,686.33 and 145,140.26 is: 217,667.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,199.55 : 577,686.33 = 145,140.26 : x
  2. Step 2: Convert to fraction form
    385,199.55/577,686.33 = 145,140.26/x
  3. Step 3: Cross multiply
    385,199.55x = 577,686.33 × 145,140.26
  4. Step 4: Simplify right side
    385,199.55x = 83,845,541,246.21
  5. Step 5: Solve for x
    x = 83,845,541,246.21/385,199.55
  6. Step 6: Final answer
    x = 217,667.81

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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.