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Finding the Fourth Proportional to 460,002.60, 690,003.90 and 144,491.40

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Solution

The fourth proportional to 460,002.60, 690,003.90 and 144,491.40 is: 216,737.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,002.60 : 690,003.90 = 144,491.40 : x
  2. Step 2: Convert to fraction form
    460,002.60/690,003.90 = 144,491.40/x
  3. Step 3: Cross multiply
    460,002.60x = 690,003.90 × 144,491.40
  4. Step 4: Simplify right side
    460,002.60x = 99,699,629,516.46
  5. Step 5: Solve for x
    x = 99,699,629,516.46/460,002.60
  6. Step 6: Final answer
    x = 216,737.10

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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.