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Finding the Fourth Proportional to 249,615.60, 374,423.40 and 220,091.10

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Solution

The fourth proportional to 249,615.60, 374,423.40 and 220,091.10 is: 330,136.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,615.60 : 374,423.40 = 220,091.10 : x
  2. Step 2: Convert to fraction form
    249,615.60/374,423.40 = 220,091.10/x
  3. Step 3: Cross multiply
    249,615.60x = 374,423.40 × 220,091.10
  4. Step 4: Simplify right side
    249,615.60x = 82,407,257,971.74
  5. Step 5: Solve for x
    x = 82,407,257,971.74/249,615.60
  6. Step 6: Final answer
    x = 330,136.65

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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.