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Finding the Fourth Proportional to 288,110.80, 432,166.20 and 286,267.60

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Solution

The fourth proportional to 288,110.80, 432,166.20 and 286,267.60 is: 429,401.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,110.80 : 432,166.20 = 286,267.60 : x
  2. Step 2: Convert to fraction form
    288,110.80/432,166.20 = 286,267.60/x
  3. Step 3: Cross multiply
    288,110.80x = 432,166.20 × 286,267.60
  4. Step 4: Simplify right side
    288,110.80x = 123,715,180,875.12
  5. Step 5: Solve for x
    x = 123,715,180,875.12/288,110.80
  6. Step 6: Final answer
    x = 429,401.40

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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.