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Finding the Fourth Proportional to 249,702.45, 344,590.80 and 136,525.20

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Solution

The fourth proportional to 249,702.45, 344,590.80 and 136,525.20 is: 188,405.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,702.45 : 344,590.80 = 136,525.20 : x
  2. Step 2: Convert to fraction form
    249,702.45/344,590.80 = 136,525.20/x
  3. Step 3: Cross multiply
    249,702.45x = 344,590.80 × 136,525.20
  4. Step 4: Simplify right side
    249,702.45x = 47,045,327,888.16
  5. Step 5: Solve for x
    x = 47,045,327,888.16/249,702.45
  6. Step 6: Final answer
    x = 188,405.55

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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.