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Finding the Fourth Proportional to 358,293.69, 537,532.88 and 257,208.93

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Solution

The fourth proportional to 358,293.69, 537,532.88 and 257,208.93 is: 385,879.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,293.69 : 537,532.88 = 257,208.93 : x
  2. Step 2: Convert to fraction form
    358,293.69/537,532.88 = 257,208.93/x
  3. Step 3: Cross multiply
    358,293.69x = 537,532.88 × 257,208.93
  4. Step 4: Simplify right side
    358,293.69x = 138,258,255,618.57
  5. Step 5: Solve for x
    x = 138,258,255,618.57/358,293.69
  6. Step 6: Final answer
    x = 385,879.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.