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Finding the Fourth Proportional to 475,131.59, 655,681.77 and 260,279.40

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Solution

The fourth proportional to 475,131.59, 655,681.77 and 260,279.40 is: 359,185.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,131.59 : 655,681.77 = 260,279.40 : x
  2. Step 2: Convert to fraction form
    475,131.59/655,681.77 = 260,279.40/x
  3. Step 3: Cross multiply
    475,131.59x = 655,681.77 × 260,279.40
  4. Step 4: Simplify right side
    475,131.59x = 170,660,457,686.54
  5. Step 5: Solve for x
    x = 170,660,457,686.54/475,131.59
  6. Step 6: Final answer
    x = 359,185.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.