Home / 459,521.88-689,283.18-144,003.36

Finding the Fourth Proportional to 459,521.88, 689,283.18 and 144,003.36

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Solution

The fourth proportional to 459,521.88, 689,283.18 and 144,003.36 is: 216,005.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,521.88 : 689,283.18 = 144,003.36 : x
  2. Step 2: Convert to fraction form
    459,521.88/689,283.18 = 144,003.36/x
  3. Step 3: Cross multiply
    459,521.88x = 689,283.18 × 144,003.36
  4. Step 4: Simplify right side
    459,521.88x = 99,259,093,911.48
  5. Step 5: Solve for x
    x = 99,259,093,911.48/459,521.88
  6. Step 6: Final answer
    x = 216,005.15

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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.