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Finding the Fourth Proportional to 475,273.07, 655,876.86 and 260,420.84

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Solution

The fourth proportional to 475,273.07, 655,876.86 and 260,420.84 is: 359,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,273.07 : 655,876.86 = 260,420.84 : x
  2. Step 2: Convert to fraction form
    475,273.07/655,876.86 = 260,420.84/x
  3. Step 3: Cross multiply
    475,273.07x = 655,876.86 × 260,420.84
  4. Step 4: Simplify right side
    475,273.07x = 170,803,999,538.38
  5. Step 5: Solve for x
    x = 170,803,999,538.38/475,273.07
  6. Step 6: Final answer
    x = 359,380.77

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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.