Home / 330,225.30-455,783.49-217,058.58

Finding the Fourth Proportional to 330,225.30, 455,783.49 and 217,058.58

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Solution

The fourth proportional to 330,225.30, 455,783.49 and 217,058.58 is: 299,588.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,225.30 : 455,783.49 = 217,058.58 : x
  2. Step 2: Convert to fraction form
    330,225.30/455,783.49 = 217,058.58/x
  3. Step 3: Cross multiply
    330,225.30x = 455,783.49 × 217,058.58
  4. Step 4: Simplify right side
    330,225.30x = 98,931,717,126.84
  5. Step 5: Solve for x
    x = 98,931,717,126.84/330,225.30
  6. Step 6: Final answer
    x = 299,588.54

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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.