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Finding the Fourth Proportional to 255,321.18, 351,582.54 and 249,656.64

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Solution

The fourth proportional to 255,321.18, 351,582.54 and 249,656.64 is: 343,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,321.18 : 351,582.54 = 249,656.64 : x
  2. Step 2: Convert to fraction form
    255,321.18/351,582.54 = 249,656.64/x
  3. Step 3: Cross multiply
    255,321.18x = 351,582.54 × 249,656.64
  4. Step 4: Simplify right side
    255,321.18x = 87,774,915,619.07
  5. Step 5: Solve for x
    x = 87,774,915,619.07/255,321.18
  6. Step 6: Final answer
    x = 343,782.35

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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.