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Finding the Fourth Proportional to 475,145.37, 655,701.36 and 260,280.72

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Solution

The fourth proportional to 475,145.37, 655,701.36 and 260,280.72 is: 359,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,145.37 : 655,701.36 = 260,280.72 : x
  2. Step 2: Convert to fraction form
    475,145.37/655,701.36 = 260,280.72/x
  3. Step 3: Cross multiply
    475,145.37x = 655,701.36 × 260,280.72
  4. Step 4: Simplify right side
    475,145.37x = 170,666,422,085.78
  5. Step 5: Solve for x
    x = 170,666,422,085.78/475,145.37
  6. Step 6: Final answer
    x = 359,187.80

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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.