Home / 348,518.40-521,395.20-302,284.80

Finding the Fourth Proportional to 348,518.40, 521,395.20 and 302,284.80

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Solution

The fourth proportional to 348,518.40, 521,395.20 and 302,284.80 is: 452,228.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,518.40 : 521,395.20 = 302,284.80 : x
  2. Step 2: Convert to fraction form
    348,518.40/521,395.20 = 302,284.80/x
  3. Step 3: Cross multiply
    348,518.40x = 521,395.20 × 302,284.80
  4. Step 4: Simplify right side
    348,518.40x = 157,609,843,752.96
  5. Step 5: Solve for x
    x = 157,609,843,752.96/348,518.40
  6. Step 6: Final answer
    x = 452,228.19

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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.