Home / 308,212.02-462,133.53-128,080.22

Finding the Fourth Proportional to 308,212.02, 462,133.53 and 128,080.22

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Solution

The fourth proportional to 308,212.02, 462,133.53 and 128,080.22 is: 192,043.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,212.02 : 462,133.53 = 128,080.22 : x
  2. Step 2: Convert to fraction form
    308,212.02/462,133.53 = 128,080.22/x
  3. Step 3: Cross multiply
    308,212.02x = 462,133.53 × 128,080.22
  4. Step 4: Simplify right side
    308,212.02x = 59,190,161,881.11
  5. Step 5: Solve for x
    x = 59,190,161,881.11/308,212.02
  6. Step 6: Final answer
    x = 192,043.65

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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.