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Finding the Fourth Proportional to 249,335.50, 344,107.90 and 148,733.50

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Solution

The fourth proportional to 249,335.50, 344,107.90 and 148,733.50 is: 205,267.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,335.50 : 344,107.90 = 148,733.50 : x
  2. Step 2: Convert to fraction form
    249,335.50/344,107.90 = 148,733.50/x
  3. Step 3: Cross multiply
    249,335.50x = 344,107.90 × 148,733.50
  4. Step 4: Simplify right side
    249,335.50x = 51,180,372,344.65
  5. Step 5: Solve for x
    x = 51,180,372,344.65/249,335.50
  6. Step 6: Final answer
    x = 205,267.09

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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.