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Finding the Fourth Proportional to 249,651, 344,479.82 and 142,207.38

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Solution

The fourth proportional to 249,651, 344,479.82 and 142,207.38 is: 196,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,651 : 344,479.82 = 142,207.38 : x
  2. Step 2: Convert to fraction form
    249,651/344,479.82 = 142,207.38/x
  3. Step 3: Cross multiply
    249,651x = 344,479.82 × 142,207.38
  4. Step 4: Simplify right side
    249,651x = 48,987,572,665.07
  5. Step 5: Solve for x
    x = 48,987,572,665.07/249,651
  6. Step 6: Final answer
    x = 196,224.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.