Home / 403,888.96-557,290-242,685.19

Finding the Fourth Proportional to 403,888.96, 557,290 and 242,685.19

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Solution

The fourth proportional to 403,888.96, 557,290 and 242,685.19 is: 334,859.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,888.96 : 557,290 = 242,685.19 : x
  2. Step 2: Convert to fraction form
    403,888.96/557,290 = 242,685.19/x
  3. Step 3: Cross multiply
    403,888.96x = 557,290 × 242,685.19
  4. Step 4: Simplify right side
    403,888.96x = 135,246,029,535.10
  5. Step 5: Solve for x
    x = 135,246,029,535.10/403,888.96
  6. Step 6: Final answer
    x = 334,859.44

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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.