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Finding the Fourth Proportional to 281,373.60, 388,305.34 and 154,050.06

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Solution

The fourth proportional to 281,373.60, 388,305.34 and 154,050.06 is: 212,594.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,373.60 : 388,305.34 = 154,050.06 : x
  2. Step 2: Convert to fraction form
    281,373.60/388,305.34 = 154,050.06/x
  3. Step 3: Cross multiply
    281,373.60x = 388,305.34 × 154,050.06
  4. Step 4: Simplify right side
    281,373.60x = 59,818,460,925.32
  5. Step 5: Solve for x
    x = 59,818,460,925.32/281,373.60
  6. Step 6: Final answer
    x = 212,594.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.