Home / 480,145.28-720,218.24-125,158.40

Finding the Fourth Proportional to 480,145.28, 720,218.24 and 125,158.40

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Solution

The fourth proportional to 480,145.28, 720,218.24 and 125,158.40 is: 187,737.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,145.28 : 720,218.24 = 125,158.40 : x
  2. Step 2: Convert to fraction form
    480,145.28/720,218.24 = 125,158.40/x
  3. Step 3: Cross multiply
    480,145.28x = 720,218.24 × 125,158.40
  4. Step 4: Simplify right side
    480,145.28x = 90,141,362,569.22
  5. Step 5: Solve for x
    x = 90,141,362,569.22/480,145.28
  6. Step 6: Final answer
    x = 187,737.68

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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.