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Finding the Fourth Proportional to 249,987.61, 344,984.03 and 136,810.09

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Solution

The fourth proportional to 249,987.61, 344,984.03 and 136,810.09 is: 188,798.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,987.61 : 344,984.03 = 136,810.09 : x
  2. Step 2: Convert to fraction form
    249,987.61/344,984.03 = 136,810.09/x
  3. Step 3: Cross multiply
    249,987.61x = 344,984.03 × 136,810.09
  4. Step 4: Simplify right side
    249,987.61x = 47,197,296,192.86
  5. Step 5: Solve for x
    x = 47,197,296,192.86/249,987.61
  6. Step 6: Final answer
    x = 188,798.54

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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.