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Finding the Fourth Proportional to 288,060.20, 402,759.40 and 288,060.20

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Solution

The fourth proportional to 288,060.20, 402,759.40 and 288,060.20 is: 402,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,060.20 : 402,759.40 = 288,060.20 : x
  2. Step 2: Convert to fraction form
    288,060.20/402,759.40 = 288,060.20/x
  3. Step 3: Cross multiply
    288,060.20x = 402,759.40 × 288,060.20
  4. Step 4: Simplify right side
    288,060.20x = 116,018,953,315.88
  5. Step 5: Solve for x
    x = 116,018,953,315.88/288,060.20
  6. Step 6: Final answer
    x = 402,759.40

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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.