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Finding the Fourth Proportional to 288,000.30, 402,267.30 and 288,000.30

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Solution

The fourth proportional to 288,000.30, 402,267.30 and 288,000.30 is: 402,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,000.30 : 402,267.30 = 288,000.30 : x
  2. Step 2: Convert to fraction form
    288,000.30/402,267.30 = 288,000.30/x
  3. Step 3: Cross multiply
    288,000.30x = 402,267.30 × 288,000.30
  4. Step 4: Simplify right side
    288,000.30x = 115,853,103,080.19
  5. Step 5: Solve for x
    x = 115,853,103,080.19/288,000.30
  6. Step 6: Final answer
    x = 402,267.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.