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Finding the Fourth Proportional to 429,886.44, 643,840.98 and 249,525.18

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Solution

The fourth proportional to 429,886.44, 643,840.98 and 249,525.18 is: 373,713.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,886.44 : 643,840.98 = 249,525.18 : x
  2. Step 2: Convert to fraction form
    429,886.44/643,840.98 = 249,525.18/x
  3. Step 3: Cross multiply
    429,886.44x = 643,840.98 × 249,525.18
  4. Step 4: Simplify right side
    429,886.44x = 160,654,536,425.88
  5. Step 5: Solve for x
    x = 160,654,536,425.88/429,886.44
  6. Step 6: Final answer
    x = 373,713.90

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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.