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Finding the Fourth Proportional to 429,527.88, 644,036.58 and 163,307.88

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Solution

The fourth proportional to 429,527.88, 644,036.58 and 163,307.88 is: 244,864.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,527.88 : 644,036.58 = 163,307.88 : x
  2. Step 2: Convert to fraction form
    429,527.88/644,036.58 = 163,307.88/x
  3. Step 3: Cross multiply
    429,527.88x = 644,036.58 × 163,307.88
  4. Step 4: Simplify right side
    429,527.88x = 105,176,248,522.25
  5. Step 5: Solve for x
    x = 105,176,248,522.25/429,527.88
  6. Step 6: Final answer
    x = 244,864.78

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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.