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Finding the Fourth Proportional to 285,365.75, 425,530.35 and 282,803.24

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Solution

The fourth proportional to 285,365.75, 425,530.35 and 282,803.24 is: 421,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,365.75 : 425,530.35 = 282,803.24 : x
  2. Step 2: Convert to fraction form
    285,365.75/425,530.35 = 282,803.24/x
  3. Step 3: Cross multiply
    285,365.75x = 425,530.35 × 282,803.24
  4. Step 4: Simplify right side
    285,365.75x = 120,341,359,570.68
  5. Step 5: Solve for x
    x = 120,341,359,570.68/285,365.75
  6. Step 6: Final answer
    x = 421,709.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.