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Finding the Fourth Proportional to 370,002.80, 555,003.48 and 285,885.20

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Solution

The fourth proportional to 370,002.80, 555,003.48 and 285,885.20 is: 428,827.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,002.80 : 555,003.48 = 285,885.20 : x
  2. Step 2: Convert to fraction form
    370,002.80/555,003.48 = 285,885.20/x
  3. Step 3: Cross multiply
    370,002.80x = 555,003.48 × 285,885.20
  4. Step 4: Simplify right side
    370,002.80x = 158,667,280,880.50
  5. Step 5: Solve for x
    x = 158,667,280,880.50/370,002.80
  6. Step 6: Final answer
    x = 428,827.24

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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.