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Finding the Fourth Proportional to 249,051.52, 343,639.74 and 158,374.72

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Solution

The fourth proportional to 249,051.52, 343,639.74 and 158,374.72 is: 218,524.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,051.52 : 343,639.74 = 158,374.72 : x
  2. Step 2: Convert to fraction form
    249,051.52/343,639.74 = 158,374.72/x
  3. Step 3: Cross multiply
    249,051.52x = 343,639.74 × 158,374.72
  4. Step 4: Simplify right side
    249,051.52x = 54,423,847,603.37
  5. Step 5: Solve for x
    x = 54,423,847,603.37/249,051.52
  6. Step 6: Final answer
    x = 218,524.45

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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.