Home / 207,300.25-310,938.02-121,959.06

Finding the Fourth Proportional to 207,300.25, 310,938.02 and 121,959.06

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Solution

The fourth proportional to 207,300.25, 310,938.02 and 121,959.06 is: 182,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,300.25 : 310,938.02 = 121,959.06 : x
  2. Step 2: Convert to fraction form
    207,300.25/310,938.02 = 121,959.06/x
  3. Step 3: Cross multiply
    207,300.25x = 310,938.02 × 121,959.06
  4. Step 4: Simplify right side
    207,300.25x = 37,921,706,472.98
  5. Step 5: Solve for x
    x = 37,921,706,472.98/207,300.25
  6. Step 6: Final answer
    x = 182,931.31

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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.