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Finding the Fourth Proportional to 249,612.80, 350,080 and 249,612.80

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Solution

The fourth proportional to 249,612.80, 350,080 and 249,612.80 is: 350,080

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,612.80 : 350,080 = 249,612.80 : x
  2. Step 2: Convert to fraction form
    249,612.80/350,080 = 249,612.80/x
  3. Step 3: Cross multiply
    249,612.80x = 350,080 × 249,612.80
  4. Step 4: Simplify right side
    249,612.80x = 87,384,449,024
  5. Step 5: Solve for x
    x = 87,384,449,024/249,612.80
  6. Step 6: Final answer
    x = 350,080

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.