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Finding the Fourth Proportional to 154,513.80, 216,941.40 and 154,513.80

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Solution

The fourth proportional to 154,513.80, 216,941.40 and 154,513.80 is: 216,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,513.80 : 216,941.40 = 154,513.80 : x
  2. Step 2: Convert to fraction form
    154,513.80/216,941.40 = 154,513.80/x
  3. Step 3: Cross multiply
    154,513.80x = 216,941.40 × 154,513.80
  4. Step 4: Simplify right side
    154,513.80x = 33,520,440,091.32
  5. Step 5: Solve for x
    x = 33,520,440,091.32/154,513.80
  6. Step 6: Final answer
    x = 216,941.40

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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.