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Finding the Fourth Proportional to 249,530.40, 374,295.60 and 99,696.60

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Solution

The fourth proportional to 249,530.40, 374,295.60 and 99,696.60 is: 149,544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,530.40 : 374,295.60 = 99,696.60 : x
  2. Step 2: Convert to fraction form
    249,530.40/374,295.60 = 99,696.60/x
  3. Step 3: Cross multiply
    249,530.40x = 374,295.60 × 99,696.60
  4. Step 4: Simplify right side
    249,530.40x = 37,315,998,714.96
  5. Step 5: Solve for x
    x = 37,315,998,714.96/249,530.40
  6. Step 6: Final answer
    x = 149,544.90

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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.