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Finding the Fourth Proportional to 249,048.86, 343,686.98 and 135,871.61

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Solution

The fourth proportional to 249,048.86, 343,686.98 and 135,871.61 is: 187,502.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,048.86 : 343,686.98 = 135,871.61 : x
  2. Step 2: Convert to fraction form
    249,048.86/343,686.98 = 135,871.61/x
  3. Step 3: Cross multiply
    249,048.86x = 343,686.98 × 135,871.61
  4. Step 4: Simplify right side
    249,048.86x = 46,697,301,929.88
  5. Step 5: Solve for x
    x = 46,697,301,929.88/249,048.86
  6. Step 6: Final answer
    x = 187,502.58

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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.