Home / 403,442.40-604,988.62-137,131.40

Finding the Fourth Proportional to 403,442.40, 604,988.62 and 137,131.40

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Solution

The fourth proportional to 403,442.40, 604,988.62 and 137,131.40 is: 205,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,442.40 : 604,988.62 = 137,131.40 : x
  2. Step 2: Convert to fraction form
    403,442.40/604,988.62 = 137,131.40/x
  3. Step 3: Cross multiply
    403,442.40x = 604,988.62 × 137,131.40
  4. Step 4: Simplify right side
    403,442.40x = 82,962,936,444.67
  5. Step 5: Solve for x
    x = 82,962,936,444.67/403,442.40
  6. Step 6: Final answer
    x = 205,637.62

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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.