Home / 429,928.16-644,898.61-163,703.43

Finding the Fourth Proportional to 429,928.16, 644,898.61 and 163,703.43

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Solution

The fourth proportional to 429,928.16, 644,898.61 and 163,703.43 is: 245,557.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,928.16 : 644,898.61 = 163,703.43 : x
  2. Step 2: Convert to fraction form
    429,928.16/644,898.61 = 163,703.43/x
  3. Step 3: Cross multiply
    429,928.16x = 644,898.61 × 163,703.43
  4. Step 4: Simplify right side
    429,928.16x = 105,572,114,663.86
  5. Step 5: Solve for x
    x = 105,572,114,663.86/429,928.16
  6. Step 6: Final answer
    x = 245,557.57

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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.