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Finding the Fourth Proportional to 311,225.40, 466,895.70 and 100,870.20

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Solution

The fourth proportional to 311,225.40, 466,895.70 and 100,870.20 is: 151,323.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,225.40 : 466,895.70 = 100,870.20 : x
  2. Step 2: Convert to fraction form
    311,225.40/466,895.70 = 100,870.20/x
  3. Step 3: Cross multiply
    311,225.40x = 466,895.70 × 100,870.20
  4. Step 4: Simplify right side
    311,225.40x = 47,095,862,638.14
  5. Step 5: Solve for x
    x = 47,095,862,638.14/311,225.40
  6. Step 6: Final answer
    x = 151,323.97

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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.