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Finding the Fourth Proportional to 260,570.79, 359,557.47 and 145,855.85

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Solution

The fourth proportional to 260,570.79, 359,557.47 and 145,855.85 is: 201,264.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,570.79 : 359,557.47 = 145,855.85 : x
  2. Step 2: Convert to fraction form
    260,570.79/359,557.47 = 145,855.85/x
  3. Step 3: Cross multiply
    260,570.79x = 359,557.47 × 145,855.85
  4. Step 4: Simplify right side
    260,570.79x = 52,443,560,410.70
  5. Step 5: Solve for x
    x = 52,443,560,410.70/260,570.79
  6. Step 6: Final answer
    x = 201,264.16

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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.