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Finding the Fourth Proportional to 460,053.40, 690,101.70 and 144,520.60

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Solution

The fourth proportional to 460,053.40, 690,101.70 and 144,520.60 is: 216,787.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,053.40 : 690,101.70 = 144,520.60 : x
  2. Step 2: Convert to fraction form
    460,053.40/690,101.70 = 144,520.60/x
  3. Step 3: Cross multiply
    460,053.40x = 690,101.70 × 144,520.60
  4. Step 4: Simplify right side
    460,053.40x = 99,733,911,745.02
  5. Step 5: Solve for x
    x = 99,733,911,745.02/460,053.40
  6. Step 6: Final answer
    x = 216,787.69

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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.