Home / 385,110.90-577,666.35-118,847.70

Finding the Fourth Proportional to 385,110.90, 577,666.35 and 118,847.70

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Solution

The fourth proportional to 385,110.90, 577,666.35 and 118,847.70 is: 178,271.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,110.90 : 577,666.35 = 118,847.70 : x
  2. Step 2: Convert to fraction form
    385,110.90/577,666.35 = 118,847.70/x
  3. Step 3: Cross multiply
    385,110.90x = 577,666.35 × 118,847.70
  4. Step 4: Simplify right side
    385,110.90x = 68,654,317,064.90
  5. Step 5: Solve for x
    x = 68,654,317,064.90/385,110.90
  6. Step 6: Final answer
    x = 178,271.55

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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.