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Finding the Fourth Proportional to 262,368.40, 393,510.36 and 75,337.36

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Solution

The fourth proportional to 262,368.40, 393,510.36 and 75,337.36 is: 112,993.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,368.40 : 393,510.36 = 75,337.36 : x
  2. Step 2: Convert to fraction form
    262,368.40/393,510.36 = 75,337.36/x
  3. Step 3: Cross multiply
    262,368.40x = 393,510.36 × 75,337.36
  4. Step 4: Simplify right side
    262,368.40x = 29,646,031,655.05
  5. Step 5: Solve for x
    x = 29,646,031,655.05/262,368.40
  6. Step 6: Final answer
    x = 112,993.91

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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.