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Finding the Fourth Proportional to 255,565.12, 351,919.20 and 249,900.64

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Solution

The fourth proportional to 255,565.12, 351,919.20 and 249,900.64 is: 344,119.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,565.12 : 351,919.20 = 249,900.64 : x
  2. Step 2: Convert to fraction form
    255,565.12/351,919.20 = 249,900.64/x
  3. Step 3: Cross multiply
    255,565.12x = 351,919.20 × 249,900.64
  4. Step 4: Simplify right side
    255,565.12x = 87,944,833,308.29
  5. Step 5: Solve for x
    x = 87,944,833,308.29/255,565.12
  6. Step 6: Final answer
    x = 344,119.08

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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.