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Finding the Fourth Proportional to 475,145.80, 655,701.42 and 260,293.64

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Solution

The fourth proportional to 475,145.80, 655,701.42 and 260,293.64 is: 359,205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,145.80 : 655,701.42 = 260,293.64 : x
  2. Step 2: Convert to fraction form
    475,145.80/655,701.42 = 260,293.64/x
  3. Step 3: Cross multiply
    475,145.80x = 655,701.42 × 260,293.64
  4. Step 4: Simplify right side
    475,145.80x = 170,674,909,364.97
  5. Step 5: Solve for x
    x = 170,674,909,364.97/475,145.80
  6. Step 6: Final answer
    x = 359,205.34

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1.5x scale

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.