Home / 429,913.16-644,928.08-149,393.96

Finding the Fourth Proportional to 429,913.16, 644,928.08 and 149,393.96

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Solution

The fourth proportional to 429,913.16, 644,928.08 and 149,393.96 is: 224,111.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,913.16 : 644,928.08 = 149,393.96 : x
  2. Step 2: Convert to fraction form
    429,913.16/644,928.08 = 149,393.96/x
  3. Step 3: Cross multiply
    429,913.16x = 644,928.08 × 149,393.96
  4. Step 4: Simplify right side
    429,913.16x = 96,348,359,786.40
  5. Step 5: Solve for x
    x = 96,348,359,786.40/429,913.16
  6. Step 6: Final answer
    x = 224,111.21

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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.