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Finding the Fourth Proportional to 281,374.27, 388,294.08 and 152,312.11

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Solution

The fourth proportional to 281,374.27, 388,294.08 and 152,312.11 is: 210,189.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,374.27 : 388,294.08 = 152,312.11 : x
  2. Step 2: Convert to fraction form
    281,374.27/388,294.08 = 152,312.11/x
  3. Step 3: Cross multiply
    281,374.27x = 388,294.08 × 152,312.11
  4. Step 4: Simplify right side
    281,374.27x = 59,141,890,625.31
  5. Step 5: Solve for x
    x = 59,141,890,625.31/281,374.27
  6. Step 6: Final answer
    x = 210,189.41

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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.