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Finding the Fourth Proportional to 249,739.60, 374,609.40 and 205,416.40

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Solution

The fourth proportional to 249,739.60, 374,609.40 and 205,416.40 is: 308,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,739.60 : 374,609.40 = 205,416.40 : x
  2. Step 2: Convert to fraction form
    249,739.60/374,609.40 = 205,416.40/x
  3. Step 3: Cross multiply
    249,739.60x = 374,609.40 × 205,416.40
  4. Step 4: Simplify right side
    249,739.60x = 76,950,914,354.16
  5. Step 5: Solve for x
    x = 76,950,914,354.16/249,739.60
  6. Step 6: Final answer
    x = 308,124.60

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1.5x scale

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.