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Finding the Fourth Proportional to 249,878.07, 344,840.04 and 136,700.82

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Solution

The fourth proportional to 249,878.07, 344,840.04 and 136,700.82 is: 188,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,878.07 : 344,840.04 = 136,700.82 : x
  2. Step 2: Convert to fraction form
    249,878.07/344,840.04 = 136,700.82/x
  3. Step 3: Cross multiply
    249,878.07x = 344,840.04 × 136,700.82
  4. Step 4: Simplify right side
    249,878.07x = 47,139,916,236.83
  5. Step 5: Solve for x
    x = 47,139,916,236.83/249,878.07
  6. Step 6: Final answer
    x = 188,651.67

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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.