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Finding the Fourth Proportional to 155,737.40, 218,622.85 and 155,737.40

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Solution

The fourth proportional to 155,737.40, 218,622.85 and 155,737.40 is: 218,622.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,737.40 : 218,622.85 = 155,737.40 : x
  2. Step 2: Convert to fraction form
    155,737.40/218,622.85 = 155,737.40/x
  3. Step 3: Cross multiply
    155,737.40x = 218,622.85 × 155,737.40
  4. Step 4: Simplify right side
    155,737.40x = 34,047,754,239.59
  5. Step 5: Solve for x
    x = 34,047,754,239.59/155,737.40
  6. Step 6: Final answer
    x = 218,622.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.