Home / 403,870.31-557,436-251,023.93

Finding the Fourth Proportional to 403,870.31, 557,436 and 251,023.93

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Solution

The fourth proportional to 403,870.31, 557,436 and 251,023.93 is: 346,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,870.31 : 557,436 = 251,023.93 : x
  2. Step 2: Convert to fraction form
    403,870.31/557,436 = 251,023.93/x
  3. Step 3: Cross multiply
    403,870.31x = 557,436 × 251,023.93
  4. Step 4: Simplify right side
    403,870.31x = 139,929,772,656.30
  5. Step 5: Solve for x
    x = 139,929,772,656.30/403,870.31
  6. Step 6: Final answer
    x = 346,472.05

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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.