Home / 385,021.96-577,598.70-118,777.48

Finding the Fourth Proportional to 385,021.96, 577,598.70 and 118,777.48

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Solution

The fourth proportional to 385,021.96, 577,598.70 and 118,777.48 is: 178,186.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,021.96 : 577,598.70 = 118,777.48 : x
  2. Step 2: Convert to fraction form
    385,021.96/577,598.70 = 118,777.48/x
  3. Step 3: Cross multiply
    385,021.96x = 577,598.70 × 118,777.48
  4. Step 4: Simplify right side
    385,021.96x = 68,605,718,037.28
  5. Step 5: Solve for x
    x = 68,605,718,037.28/385,021.96
  6. Step 6: Final answer
    x = 178,186.51

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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.