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Finding the Fourth Proportional to 289,269.80, 433,904.70 and 283,364.90

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Solution

The fourth proportional to 289,269.80, 433,904.70 and 283,364.90 is: 425,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,269.80 : 433,904.70 = 283,364.90 : x
  2. Step 2: Convert to fraction form
    289,269.80/433,904.70 = 283,364.90/x
  3. Step 3: Cross multiply
    289,269.80x = 433,904.70 × 283,364.90
  4. Step 4: Simplify right side
    289,269.80x = 122,953,361,925.03
  5. Step 5: Solve for x
    x = 122,953,361,925.03/289,269.80
  6. Step 6: Final answer
    x = 425,047.35

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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.