Home / 280,669.02-387,213.28-173,052.21

Finding the Fourth Proportional to 280,669.02, 387,213.28 and 173,052.21

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Solution

The fourth proportional to 280,669.02, 387,213.28 and 173,052.21 is: 238,744.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,669.02 : 387,213.28 = 173,052.21 : x
  2. Step 2: Convert to fraction form
    280,669.02/387,213.28 = 173,052.21/x
  3. Step 3: Cross multiply
    280,669.02x = 387,213.28 × 173,052.21
  4. Step 4: Simplify right side
    280,669.02x = 67,008,113,845.35
  5. Step 5: Solve for x
    x = 67,008,113,845.35/280,669.02
  6. Step 6: Final answer
    x = 238,744.25

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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.