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Finding the Fourth Proportional to 259,344.80, 389,600.40 and 249,430.40

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Solution

The fourth proportional to 259,344.80, 389,600.40 and 249,430.40 is: 374,706.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,344.80 : 389,600.40 = 249,430.40 : x
  2. Step 2: Convert to fraction form
    259,344.80/389,600.40 = 249,430.40/x
  3. Step 3: Cross multiply
    259,344.80x = 389,600.40 × 249,430.40
  4. Step 4: Simplify right side
    259,344.80x = 97,178,183,612.16
  5. Step 5: Solve for x
    x = 97,178,183,612.16/259,344.80
  6. Step 6: Final answer
    x = 374,706.51

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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.