Home / 403,130.33-556,305.91-221,825.31

Finding the Fourth Proportional to 403,130.33, 556,305.91 and 221,825.31

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Solution

The fourth proportional to 403,130.33, 556,305.91 and 221,825.31 is: 306,111.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,130.33 : 556,305.91 = 221,825.31 : x
  2. Step 2: Convert to fraction form
    403,130.33/556,305.91 = 221,825.31/x
  3. Step 3: Cross multiply
    403,130.33x = 556,305.91 × 221,825.31
  4. Step 4: Simplify right side
    403,130.33x = 123,402,730,386.02
  5. Step 5: Solve for x
    x = 123,402,730,386.02/403,130.33
  6. Step 6: Final answer
    x = 306,111.25

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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.