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Finding the Fourth Proportional to 288,925.80, 433,215.90 and 148,957.80

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Solution

The fourth proportional to 288,925.80, 433,215.90 and 148,957.80 is: 223,347.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,925.80 : 433,215.90 = 148,957.80 : x
  2. Step 2: Convert to fraction form
    288,925.80/433,215.90 = 148,957.80/x
  3. Step 3: Cross multiply
    288,925.80x = 433,215.90 × 148,957.80
  4. Step 4: Simplify right side
    288,925.80x = 64,530,887,389.02
  5. Step 5: Solve for x
    x = 64,530,887,389.02/288,925.80
  6. Step 6: Final answer
    x = 223,347.61

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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.