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Finding the Fourth Proportional to 353,075.56, 529,446.86 and 128,277.48

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Solution

The fourth proportional to 353,075.56, 529,446.86 and 128,277.48 is: 192,355.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,075.56 : 529,446.86 = 128,277.48 : x
  2. Step 2: Convert to fraction form
    353,075.56/529,446.86 = 128,277.48/x
  3. Step 3: Cross multiply
    353,075.56x = 529,446.86 × 128,277.48
  4. Step 4: Simplify right side
    353,075.56x = 67,916,108,994.71
  5. Step 5: Solve for x
    x = 67,916,108,994.71/353,075.56
  6. Step 6: Final answer
    x = 192,355.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.