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Finding the Fourth Proportional to 282,692.00, 390,110.57 and 155,364.86

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Solution

The fourth proportional to 282,692.00, 390,110.57 and 155,364.86 is: 214,401.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,692.00 : 390,110.57 = 155,364.86 : x
  2. Step 2: Convert to fraction form
    282,692.00/390,110.57 = 155,364.86/x
  3. Step 3: Cross multiply
    282,692.00x = 390,110.57 × 155,364.86
  4. Step 4: Simplify right side
    282,692.00x = 60,609,471,365.19
  5. Step 5: Solve for x
    x = 60,609,471,365.19/282,692.00
  6. Step 6: Final answer
    x = 214,401.09

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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.