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Finding the Fourth Proportional to 154,485.60, 216,746.40 and 154,485.60

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Solution

The fourth proportional to 154,485.60, 216,746.40 and 154,485.60 is: 216,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,485.60 : 216,746.40 = 154,485.60 : x
  2. Step 2: Convert to fraction form
    154,485.60/216,746.40 = 154,485.60/x
  3. Step 3: Cross multiply
    154,485.60x = 216,746.40 × 154,485.60
  4. Step 4: Simplify right side
    154,485.60x = 33,484,197,651.84
  5. Step 5: Solve for x
    x = 33,484,197,651.84/154,485.60
  6. Step 6: Final answer
    x = 216,746.40

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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.