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Finding the Fourth Proportional to 282,133.60, 423,200.40 and 211,631.20

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Solution

The fourth proportional to 282,133.60, 423,200.40 and 211,631.20 is: 317,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,133.60 : 423,200.40 = 211,631.20 : x
  2. Step 2: Convert to fraction form
    282,133.60/423,200.40 = 211,631.20/x
  3. Step 3: Cross multiply
    282,133.60x = 423,200.40 × 211,631.20
  4. Step 4: Simplify right side
    282,133.60x = 89,562,408,492.48
  5. Step 5: Solve for x
    x = 89,562,408,492.48/282,133.60
  6. Step 6: Final answer
    x = 317,446.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.