Home / 370,386.02-511,128.24-225,143.70

Finding the Fourth Proportional to 370,386.02, 511,128.24 and 225,143.70

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Solution

The fourth proportional to 370,386.02, 511,128.24 and 225,143.70 is: 310,695.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,386.02 : 511,128.24 = 225,143.70 : x
  2. Step 2: Convert to fraction form
    370,386.02/511,128.24 = 225,143.70/x
  3. Step 3: Cross multiply
    370,386.02x = 511,128.24 × 225,143.70
  4. Step 4: Simplify right side
    370,386.02x = 115,077,303,128.09
  5. Step 5: Solve for x
    x = 115,077,303,128.09/370,386.02
  6. Step 6: Final answer
    x = 310,695.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.