Home / 445,125-614,272.56-243,916.68

Finding the Fourth Proportional to 445,125, 614,272.56 and 243,916.68

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Solution

The fourth proportional to 445,125, 614,272.56 and 243,916.68 is: 336,605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,125 : 614,272.56 = 243,916.68 : x
  2. Step 2: Convert to fraction form
    445,125/614,272.56 = 243,916.68/x
  3. Step 3: Cross multiply
    445,125x = 614,272.56 × 243,916.68
  4. Step 4: Simplify right side
    445,125x = 149,831,323,450.30
  5. Step 5: Solve for x
    x = 149,831,323,450.30/445,125
  6. Step 6: Final answer
    x = 336,605.05

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1.5x scale

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.