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Finding the Fourth Proportional to 282,459.35, 423,703.60 and 72,099.11

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Solution

The fourth proportional to 282,459.35, 423,703.60 and 72,099.11 is: 108,152.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,459.35 : 423,703.60 = 72,099.11 : x
  2. Step 2: Convert to fraction form
    282,459.35/423,703.60 = 72,099.11/x
  3. Step 3: Cross multiply
    282,459.35x = 423,703.60 × 72,099.11
  4. Step 4: Simplify right side
    282,459.35x = 30,548,652,463.80
  5. Step 5: Solve for x
    x = 30,548,652,463.80/282,459.35
  6. Step 6: Final answer
    x = 108,152.39

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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.