Home / 348,254.62-480,387.76-218,988.50

Finding the Fourth Proportional to 348,254.62, 480,387.76 and 218,988.50

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Solution

The fourth proportional to 348,254.62, 480,387.76 and 218,988.50 is: 302,076.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,254.62 : 480,387.76 = 218,988.50 : x
  2. Step 2: Convert to fraction form
    348,254.62/480,387.76 = 218,988.50/x
  3. Step 3: Cross multiply
    348,254.62x = 480,387.76 × 218,988.50
  4. Step 4: Simplify right side
    348,254.62x = 105,199,394,980.76
  5. Step 5: Solve for x
    x = 105,199,394,980.76/348,254.62
  6. Step 6: Final answer
    x = 302,076.09

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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.