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Finding the Fourth Proportional to 249,565.78, 344,400.01 and 136,388.53

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Solution

The fourth proportional to 249,565.78, 344,400.01 and 136,388.53 is: 188,215.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,565.78 : 344,400.01 = 136,388.53 : x
  2. Step 2: Convert to fraction form
    249,565.78/344,400.01 = 136,388.53/x
  3. Step 3: Cross multiply
    249,565.78x = 344,400.01 × 136,388.53
  4. Step 4: Simplify right side
    249,565.78x = 46,972,211,095.89
  5. Step 5: Solve for x
    x = 46,972,211,095.89/249,565.78
  6. Step 6: Final answer
    x = 188,215.75

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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.