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Finding the Fourth Proportional to 249,951.60, 345,596.76 and 218,458.80

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Solution

The fourth proportional to 249,951.60, 345,596.76 and 218,458.80 is: 302,053.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,951.60 : 345,596.76 = 218,458.80 : x
  2. Step 2: Convert to fraction form
    249,951.60/345,596.76 = 218,458.80/x
  3. Step 3: Cross multiply
    249,951.60x = 345,596.76 × 218,458.80
  4. Step 4: Simplify right side
    249,951.60x = 75,498,653,473.49
  5. Step 5: Solve for x
    x = 75,498,653,473.49/249,951.60
  6. Step 6: Final answer
    x = 302,053.09

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1.5x scale

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.