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Finding the Fourth Proportional to 302,494.80, 450,637.98 and 288,847.92

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Solution

The fourth proportional to 302,494.80, 450,637.98 and 288,847.92 is: 430,307.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,494.80 : 450,637.98 = 288,847.92 : x
  2. Step 2: Convert to fraction form
    302,494.80/450,637.98 = 288,847.92/x
  3. Step 3: Cross multiply
    302,494.80x = 450,637.98 × 288,847.92
  4. Step 4: Simplify right side
    302,494.80x = 130,165,843,196.00
  5. Step 5: Solve for x
    x = 130,165,843,196.00/302,494.80
  6. Step 6: Final answer
    x = 430,307.71

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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.